298 lines
15 KiB
JSON
298 lines
15 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-33793",
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"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
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"state": "PUBLISHED",
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"assignerShortName": "juniper",
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"dateReserved": "2026-03-23T19:46:13.672Z",
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"datePublished": "2026-04-09T21:24:50.485Z",
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"dateUpdated": "2026-04-16T15:14:18.212Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"product": "Junos OS",
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"vendor": "Juniper Networks",
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"versions": [
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{
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"lessThan": "22.4R3-S7",
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"status": "affected",
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"version": "0",
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"versionType": "semver"
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},
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{
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"lessThan": "23.2R2-S4",
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"status": "affected",
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"version": "23.2",
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"versionType": "semver"
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},
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{
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"lessThan": "23.4R2-S6",
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"status": "affected",
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"version": "23.4",
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"versionType": "semver"
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},
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{
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"lessThan": "24.2R1-S2, 24.2R2",
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"status": "affected",
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"version": "24.2",
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"versionType": "semver"
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},
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{
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"lessThan": "24.4R1-S2, 24.4R2",
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"status": "affected",
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"version": "24.4",
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"versionType": "semver"
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}
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]
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},
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{
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"defaultStatus": "unaffected",
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"product": "Junos OS Evolved",
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"vendor": "Juniper Networks",
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"versions": [
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{
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"lessThan": "22.4R3-S7-EVO",
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"status": "affected",
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"version": "0",
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"versionType": "semver"
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},
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{
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"lessThan": "23.2R2-S4-EVO",
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"status": "affected",
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"version": "23.2",
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"versionType": "semver"
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},
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{
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"lessThan": "23.4R2-S6-EVO",
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"status": "affected",
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"version": "23.4",
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"versionType": "semver"
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},
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{
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"lessThan": "24.2R2-EVO",
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"status": "affected",
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"version": "24.2",
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"versionType": "semver"
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},
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{
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"lessThan": "24.4R1-S1-EVO, 24.4R2-EVO",
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"status": "affected",
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"version": "24.4",
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"versionType": "semver"
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}
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]
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}
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],
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"configurations": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "This issue can affect all systems with Python 3 op scripts enabled:<br><br><tt>[ system scripts language python3 ]</tt><br><br>However, the risk of malicious exploitation is significantly higher when the ability to execute Python 3 op scripts from a remote location is enabled:<br><br>\n\n<tt>[ system scripts op allow-url-for-python ]</tt>\n\n<br><br>Starting in Junos OS Evolved Release 21.2R1, the <tt>junos-defaults</tt> configuration group includes '<tt>system scripts language python3</tt>' enabled by default.<br><br>\n\n<br>"
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}
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],
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"value": "This issue can affect all systems with Python 3 op scripts enabled:\n\n[ system scripts language python3 ]\n\nHowever, the risk of malicious exploitation is significantly higher when the ability to execute Python 3 op scripts from a remote location is enabled:\n\n\n\n[ system scripts op allow-url-for-python ]\n\n\n\nStarting in Junos OS Evolved Release 21.2R1, the junos-defaults configuration group includes 'system scripts language python3' enabled by default."
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}
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],
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"datePublic": "2026-04-08T16:00:00.000Z",
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.<br><br>When a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation. <br><br>This issue affects Junos OS: <p></p><ul><li>All versions before 22.4R3-S7, </li><li>from 23.2 before 23.2R2-S4, </li><li>from 23.4 before 23.4R2-S6,</li><li>from 24.2 before 24.2R1-S2, 24.2R2, </li><li>from 24.4 before 24.4R1-S2, 24.4R2; </li></ul><p></p><p>Junos OS Evolved: </p><p></p><ul><li>All versions before 22.4R3-S7-EVO, </li><li>from 23.2 before 23.2R2-S4-EVO, </li><li>from 23.4 before 23.4R2-S6-EVO,</li><li>from 24.2 before 24.2R2-EVO, </li><li>from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO.</li></ul>"
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}
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],
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"value": "An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.\n\nWhen a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation. \n\nThis issue affects Junos OS: \n\n * All versions before 22.4R3-S7, \n * from 23.2 before 23.2R2-S4, \n * from 23.4 before 23.4R2-S6,\n * from 24.2 before 24.2R1-S2, 24.2R2, \n * from 24.4 before 24.4R1-S2, 24.4R2; \n\n\n\n\nJunos OS Evolved: \n\n\n\n * All versions before 22.4R3-S7-EVO, \n * from 23.2 before 23.2R2-S4-EVO, \n * from 23.4 before 23.4R2-S6-EVO,\n * from 24.2 before 24.2R2-EVO, \n * from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO."
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}
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],
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"exploits": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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}
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],
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"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "LOCAL",
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"availabilityImpact": "HIGH",
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"baseScore": 7.8,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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},
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{
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"cvssV4_0": {
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"Automatable": "YES",
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"Recovery": "USER",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "LOCAL",
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"baseScore": 8.5,
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"baseSeverity": "HIGH",
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"privilegesRequired": "LOW",
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"providerUrgency": "AMBER",
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"subAvailabilityImpact": "LOW",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"valueDensity": "CONCENTRATED",
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/AU:Y/R:U/V:C/RE:M/U:Amber",
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"version": "4.0",
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"vulnAvailabilityImpact": "HIGH",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnerabilityResponseEffort": "MODERATE"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-250",
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"description": "CWE-250: Execution with Unnecessary Privileges",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
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"shortName": "juniper",
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"dateUpdated": "2026-04-16T15:14:18.212Z"
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},
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"references": [
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{
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"tags": [
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"vendor-advisory"
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],
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"url": "https://supportportal.juniper.net/JSA103142"
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}
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],
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"solutions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "The following software releases have been updated to resolve this specific issue: <br><br>Junos OS Evolved: 22.4R3-S7-EVO, 23.2R2-S4-EVO, 23.4R2-S6-EVO, 24.2R2-EVO, 24.4R1-S1-EVO, 24.4R2-EVO, 25.2R1-EVO and all subsequent releases.<br><br>Junos OS: 22.4R3-S7, 23.2R2-S4, 23.4R2-S6, 24.2R1-S2, 24.2R2, 24.4R1-S2, 24.4R2, 25.2R1 and all subsequent releases.<br><br><br>"
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}
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],
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"value": "The following software releases have been updated to resolve this specific issue: \n\nJunos OS Evolved: 22.4R3-S7-EVO, 23.2R2-S4-EVO, 23.4R2-S6-EVO, 24.2R2-EVO, 24.4R1-S1-EVO, 24.4R2-EVO, 25.2R1-EVO and all subsequent releases.\n\nJunos OS: 22.4R3-S7, 23.2R2-S4, 23.4R2-S6, 24.2R1-S2, 24.2R2, 24.4R1-S2, 24.4R2, 25.2R1 and all subsequent releases."
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}
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],
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"source": {
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"advisory": "JSA103142",
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"defect": [
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"1842247"
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],
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"discovery": "INTERNAL"
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},
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"timeline": [
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{
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"lang": "en",
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"time": "2026-04-08T16:00:00.000Z",
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"value": "Initial Publication"
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},
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{
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"lang": "en",
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"time": "2026-04-16T16:00:00.000Z",
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"value": "While 'language python3' allows an attacker to execute local Python scripts, the scenario with the highest risk of malicious exploitation occurs when an attacker can execute remote Python scripts"
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}
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],
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"title": "Junos OS and Junos OS Evolved: When an unsigned Python op script configuration is present, a local low privileged user can compromise the system",
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"workarounds": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.<br>"
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}
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],
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"value": "Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators."
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}
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],
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"x_generator": {
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"engine": "Vulnogram 0.1.0-dev"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-04-13T00:00:00+00:00",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3",
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"id": "CVE-2026-33793"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-04-14T03:55:39.735Z"
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}
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}
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]
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}
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} |