149 lines
6.5 KiB
JSON
149 lines
6.5 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-2026-42155",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-04-24T17:15:21.835Z",
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"datePublished": "2026-05-15T17:05:02.436Z",
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"dateUpdated": "2026-05-15T17:36:27.793Z"
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},
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"containers": {
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"cna": {
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"title": "Magento LTS: Weak API Session ID — Predictable MD5 of Time-Derived Inputs",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-330",
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"lang": "en",
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"description": "CWE-330: Use of Insufficiently Random Values",
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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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"descriptions": [
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{
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"cweId": "CWE-331",
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"lang": "en",
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"description": "CWE-331: Insufficient Entropy",
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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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"descriptions": [
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{
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"cweId": "CWE-338",
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"lang": "en",
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"description": "CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)",
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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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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "LOW",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 9.3,
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"baseSeverity": "CRITICAL",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
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"version": "4.0"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/OpenMage/magento-lts/security/advisories/GHSA-2cwr-gcf9-pvxr",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/OpenMage/magento-lts/security/advisories/GHSA-2cwr-gcf9-pvxr"
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}
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],
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"affected": [
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{
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"vendor": "OpenMage",
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"product": "magento-lts",
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"versions": [
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{
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"version": "< 20.18.0",
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"status": "affected"
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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": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-05-15T17:05:02.436Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Prior to 20.18.0, the XML-RPC / SOAP API session ID is generated using an outdated, time-based construction rather than a Cryptographically Secure Pseudo-Random Number Generator (CSPRNG). All inputs to the MD5 hash are time-derived and non-secure. Because the resulting digest relies entirely on the timestamp and the PHP internal LCG state, the effective entropy is severely constrained. This violates the OWASP ASVS v4 requirement of ≥ 64 bits of entropy (V3.2.2) and NIST SP 800-63B standards. By narrowing the LCG window (via server state leaks or general predictability) and leveraging the lack of API rate-limiting, an attacker can generate a localized pool of candidate MD5 hashes and execute a high-speed online brute-force attack to hijack active API sessions. This vulnerability is fixed in 20.18.0."
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}
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],
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"source": {
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"advisory": "GHSA-2cwr-gcf9-pvxr",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/OpenMage/magento-lts/security/advisories/GHSA-2cwr-gcf9-pvxr",
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"tags": [
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"exploit"
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]
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}
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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": "2026-05-15T17:36:24.561394Z",
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"id": "CVE-2026-42155",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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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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}
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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": "2026-05-15T17:36:27.793Z"
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}
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}
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]
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}
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} |