CVE-2021-45115

描述

An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. UserAttributeSimilarityValidator incurred significant overhead in evaluating a submitted password that was artificially large in relation to the comparison values. In a situation where access to user registration was unrestricted, this provided a potential vector for a denial-of-service attack.

如何修補 CVE-2021-45115

要修補 CVE-2021-45115,請將受影響套件升級到下列已修補版本。

• —升級至 2.2.26 或更新版本
• —升級至 2:2.2.26-1~deb11u1 或更新版本
• —升級至 1:1.11.29-1+deb10u3 或更新版本
• —升級至 2.2.26 或更新版本
• —升級至 2.2.26 或更新版本

CVE-2021-45115 正在被利用嗎?

低 — EPSS 為 2.4%,目前沒有觀察到大規模利用活動。

受影響套件(5)

• >= 2.2.0, < 2.2.26, >= 3.2.0, < 3.2.11, >= 4.0.0, < 4.0.1
• from 0, < 2:2.2.26-1~deb11u1
• from 0, < 1:1.11.29-1+deb10u3
• >= 2.2a1, < 2.2.26
• >= 2.2, < 2.2.26, >= 3.2, < 3.2.11, >= 4.0, < 4.0.1

CVSS 分數

參考連結(18)

• ADVISORYgithub.com/advisories/GHSA-53qw-q765-4fww
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-45115
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2021-45115
• ADVISORYwww.djangoproject.com/weblog/2022/jan/04/security-releases/
• PATCH