Path traversal in Beego

1) Path traversal

EUVDB-ID: #VU85168

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-31836

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to leafInfo.match() function in Beego uses path.join() to deal with wildcardvalues which can lead to cross directory risk. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Beego: 1.0.1 - 2.0.3

CPE2.3

• cpe:2.3:a:beego_framework:beego:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:beego_framework:beego:1.10.0:*:*:*:*:*:*:*
• cpe:2.3:a:beego_framework:beego:1.10.1:*:*:*:*:*:*:*

External links

https://github.com/beego/beego/issues/4961
https://github.com/advisories/GHSA-95f9-94vc-665h

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.