Open Redirect in Oauthlib
CVE-2022-36087
OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. In OAuthLib versions 3.1.1 until 3.2.1, an attacker providing malicious redirect uri can cause denial of service. An attacker can also leverage usage of `uri_validate` functions depending where it is used. OAuthLib applications using OAuth2.0 provider support or use directly `uri_validate` are affected by this issue. Version 3.2.1 contains a patch. There are no known workarounds.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.017 (76.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: +0.000
Affected products
- Oauthlib — versions >= 3.1.1, < 3.2.1
- Oauthlib Project
- Fedoraproject Fedora — versions 37
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/oauthlib/oauthlib/security/advisories/GHSA-3pgj-pg6c-r5p7 (Exploit, Third Party Advisory, Mitigation)
- github.com/oauthlib/oauthlib/commit/2e40b412c844ecc4673c3fa3f72181f228bdbacd (Patch, Third Party Advisory)
- github.com/oauthlib/oauthlib/blob/2b8a44855a51ad5a5b0c348a08c2564a2e197ea2/oaut… (Exploit, Third Party Advisory)
- github.com/oauthlib/oauthlib/blob/d4bafd9f1d0eba3766e933b1ac598cbbf37b8914/oaut… (Exploit, Third Party Advisory)
- github.com/oauthlib/oauthlib/releases/tag/v3.2.1 (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2022-36087?
- CVE-2022-36087 is a medium-severity vulnerability in Oauthlib, classified under Improper Input Validation. CVSS score: 5.7/10. Published 2022-09-09.
- How severe is CVE-2022-36087?
- Medium severity. CVSS v3 base score is 5.7 out of 10.
- Is CVE-2022-36087 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.