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CVE-2022-36087— OAuthLib vulnerable DoS when attacker provides malicious IPV6 URI

Quick assessment

Affected
oauthlib oauthlib
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OAuthLib是OAuthLib开源的一个 OAuth1 和 OAuth2 的 Python 框架。 OAuthLib 3.1.1版本至3.2.1版本存在输入验证错误漏洞。攻击者利用该漏洞提供恶意重定向uri可导致拒绝服务。

CVSS 5.7 · Medium EPSS 1.67% · P76

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-36087

Vulnerability Information
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Vulnerability Title
OAuthLib vulnerable DoS when attacker provides malicious IPV6 URI
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OAuthLib 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OAuthLib是OAuthLib开源的一个 OAuth1 和 OAuth2 的 Python 框架。 OAuthLib 3.1.1版本至3.2.1版本存在输入验证错误漏洞。攻击者利用该漏洞提供恶意重定向uri可导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
oauthlib oauthlib >= 3.1.1, < 3.2.1 -

II. Public POCs for CVE-2022-36087

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III. Intelligence Information for CVE-2022-36087

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Patches & Fixes for CVE-2022-36087 (1)

Vendor Advisories for CVE-2022-36087 (1)

Mailing List Discussions for CVE-2022-36087 (4)

Other References for CVE-2022-36087 (3)

IV. Related Vulnerabilities

Same product: oauthlib
Same vendor: oauthlib
Same weakness: CWE-20

V. Comments for CVE-2022-36087

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