#VU77164 Information disclosure in Requests - CVE-2023-32681

Vulnerability identifier: #VU77164

Vulnerability risk: Medium

CVSSv4.0: 5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2023-32681

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Requests
Universal components / Libraries / Scripting languages

Vendor: Python.org

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to requests has been leaking Proxy-Authorization headers to destination servers when redirected to an HTTPS endpoint. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Requests: before 2.31.0

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External links
https://github.com/psf/requests/security/advisories/GHSA-j8r2-6x86-q33q
https://github.com/psf/requests/releases/tag/v2.31.0
https://github.com/psf/requests/commit/74ea7cf7a6a27a4eeb2ae24e162bcc942a6706d5
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AW7HNFGYP44RT3DUDQXG2QT3OEV2PJ7Y/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KOYASTZDGQG2BWLSNBPL3TQRL2G7QYNZ/

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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.