#VU84618 Input validation error in Gin - CVE-2023-26125

Vulnerability identifier: #VU84618

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-26125

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Gin
Web applications / CMS

Vendor: Gin-Gonic

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

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

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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.