SSRF in PostHog

1) Server-Side Request Forgery (SSRF)

EUVDB-ID: #VU98721

Risk: Medium

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-46746

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

Exploit availability: No

Description

The disclosed vulnerability allows a remote user to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input. A remote user can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PostHog: 1.0.0 - 1.43.1

CPE2.3

• cpe:2.3:a:posthog:posthog:1.43.1:*:*:*:*:*:*:*
• cpe:2.3:a:posthog:posthog:1.43.0:*:*:*:*:*:*:*
• cpe:2.3:a:posthog:posthog:1.42.0:*:*:*:*:*:*:*

External links

http://github.com/PostHog/posthog/security/advisories/GHSA-wqqw-r8c5-j67c
http://github.com/PostHog/posthog/commit/22bd5942638d5d9bc4bd603a9bfe8f8a95572292
http://securitylab.github.com/advisories/GHSL-2023-185_posthog_posthog/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.