#VU67902 Allocation of Resources Without Limits or Throttling in Rdiffweb - CVE-2022-3371

Vulnerability identifier: #VU67902

Vulnerability risk: Medium

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2022-3371

CWE-ID: CWE-770

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Rdiffweb
Web applications / Other software

Vendor: Patrik Dufresne

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to allocation of resources without limits or throttling in the Token name parameter. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Rdiffweb: before 2.5.0a3

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External links
https://huntr.dev/bounties/4e8f6136-50c7-4fa1-ac98-699bcb7b35ce
https://github.com/ikus060/rdiffweb/commit/b62c479ff6979563c7c23e7182942bc4f460a2c7

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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. However, proof of concept for this vulnerability is available.