#VU58354 Path traversal in Aim - CVE-2021-43775

Vulnerability identifier: #VU58354

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-43775

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Aim
Web applications / Modules and components for CMS

Vendor: AimStack

Description

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

The vulnerability exists due to input validation error when processing directory traversal sequences. 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

Aim: 0.1.0 - 3.0.6

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External links
https://github.com/aimhubio/aim/issues/999
https://github.com/aimhubio/aim/security/advisories/GHSA-8phj-f9w2-cjcc
https://github.com/aimhubio/aim/pull/1003
https://github.com/aimhubio/aim/blob/0b99c6ca08e0ba7e7011453a2f68033e9b1d1bce/aim/web/api/views.py#L9-L16
https://github.com/aimhubio/aim/pull/1003/commits/f01266a1a479ef11d7d6c539e7dd89e9d5639738

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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.