#VU102572 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in Net::OAuth - CVE-2025-22376

Vulnerability identifier: #VU102572

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-22376

CWE-ID: CWE-338

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Net::OAuth
Universal components / Libraries / Programming Languages & Components

Vendor: KGRENNAN

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to usage of a weak nonce in Net::OAuth::Client. A remote attacker can guess the nonce and perform MitM attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Net::OAuth: 0.1 - 0.28

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External links
https://metacpan.org/release/KGRENNAN/Net-OAuth-0.28/source/lib/Net/OAuth/Client.pm#L260
https://metacpan.org/release/RRWO/Net-OAuth-0.29/changes

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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.