Cache poisoning attack in Gin-Gonic Gin

1) Input validation error

EUVDB-ID: #VU84618

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-26125

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to poison application's cache.

The vulnerability exists due to insufficient validation of user-supplied input when processing X-Forwarded-Prefix header. A remote attacker can pass send specially crafted request to the application and perform cache poisoning.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Gin: 0.1 - 1.8.2

External links

http://github.com/t0rchwo0d/gin/commit/fd9f98e70fb4107ee68c783482d231d35e60507b
http://github.com/gin-gonic/gin/pull/3500
http://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGINGONICGIN-3324285
http://github.com/gin-gonic/gin/pull/3503
http://github.com/gin-gonic/gin/releases/tag/v1.9.0

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.