CVE-2021-37840

Public Exploit

Description

aaPanel through 6.8.12 allows Cross-Site WebSocket Hijacking (CSWH) involving OS commands within WebSocket messages at a ws:// URL for /webssh (the victim must have configured Terminal with at least one host). Successful exploitation depends on the browser used by a potential victim (e.g., exploitation can occur with Firefox but not Chrome).

8.8

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.40%

Third-Party Advisory github.com Third-Party Advisory ssd-disclosure.com

Affected: n/a n/a

References

Link	Tags
https://github.com/aaPanel/aaPanel/issues/74	third party advisory exploit
https://ssd-disclosure.com/ssd-advisory-aapanel-cswh-to-rce/	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-37840?: CVE-2021-37840 has been scored as a high severity vulnerability.
How to fix CVE-2021-37840?: To fix CVE-2021-37840, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-37840 being actively exploited in the wild?: It is possible that CVE-2021-37840 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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