Vulnerability Report

CVE-2023-32681

Title: Python Requests Information Disclosure

Information Disclosure

Proof Of Concept

No public PoC currently indexed for CVE-2023-32681.

CWE Category CWE-200
Published Date May 26, 2023
Modified Date Feb 13, 2025
Exploit Status Not Found
Score 6.1 CVSS v3.1
Exploit Probability (EPSS)
2.97%

Vulnerability Summary

CVE-2023-32681: Requests is a HTTP library. Since Requests 2.3.0, Requests has been leaking Proxy-Authorization headers to destination servers when redirected to an HTTPS endpoint. This is a product of how we use `rebuild_proxies` to reattach the `Proxy-Authorization` header to requests. For HTTP connections sent through the tunnel, the proxy will identify the header in the request itself and remove it prior to forwarding to the destination server. However when sent over HTTPS, the `Proxy-Authorization` header must be sent in the CONNECT request as the proxy has no visibility into the tunneled request. This results in Requests forwarding proxy credentials to the destination server unintentionally, allowing a malicious actor to potentially exfiltrate sensitive information. This issue has been patched in version 2.31.0.

Impacted Vendors

J
jenkins 1
P
python 1

Reference Links

https://github.com/psf/requests/commit/74ea7cf7a6a27a4eeb2ae24e162bcc942a6706d5 https://github.com/psf/requests/releases/tag/v2.31.0 https://github.com/psf/requests/security/advisories/GHSA-j8r2-6x86-q33q https://lists.debian.org/debian-lts-announce/2023/06/msg00018.html https://lists.fedoraproject.org/archives/list/[email protected]/message/AW7HNFGYP44RT3DUDQXG2QT3OEV2PJ7Y/ https://lists.fedoraproject.org/archives/list/[email protected]/message/KOYASTZDGQG2BWLSNBPL3TQRL2G7QYNZ/ https://security.gentoo.org/glsa/202309-08 https://github.com/psf/requests/commit/74ea7cf7a6a27a4eeb2ae24e162bcc942a6706d5 https://github.com/psf/requests/releases/tag/v2.31.0 https://github.com/psf/requests/security/advisories/GHSA-j8r2-6x86-q33q https://lists.debian.org/debian-lts-announce/2023/06/msg00018.html https://lists.fedoraproject.org/archives/list/[email protected]/message/AW7HNFGYP44RT3DUDQXG2QT3OEV2PJ7Y/ https://lists.fedoraproject.org/archives/list/[email protected]/message/KOYASTZDGQG2BWLSNBPL3TQRL2G7QYNZ/ https://security.gentoo.org/glsa/202309-08
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.1
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.1
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-32681 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

Affected Stack

No specific products linked.