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CVE-2022-31129— Inefficient Regular Expression Complexity in moment

Quick assessment

Affected
moment moment
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Moment.js是一个 JavaScript 日期库。用于解析、验证、操作和格式化日期。 Moment.js 存在安全漏洞，该漏洞源于使用了低效的解析算法。在没有健全长度检查的情况下将用户提供的字符串传递给时刻构造函数的用户很容易受到正则拒绝服务攻击。

CVSS 7.5 · High EPSS 5.55% · P93

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2022-31129

Vulnerability Information
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Vulnerability Title
Inefficient Regular Expression Complexity in moment
Source: CVE Program / CVE List V5
Vulnerability Description
moment is a JavaScript date library for parsing, validating, manipulating, and formatting dates. Affected versions of moment were found to use an inefficient parsing algorithm. Specifically using string-to-date parsing in moment (more specifically rfc2822 parsing, which is tried by default) has quadratic (N^2) complexity on specific inputs. Users may notice a noticeable slowdown is observed with inputs above 10k characters. Users who pass user-provided strings without sanity length checks to moment constructor are vulnerable to (Re)DoS attacks. The problem is patched in 2.29.4, the patch can be applied to all affected versions with minimal tweaking. Users are advised to upgrade. Users unable to upgrade should consider limiting date lengths accepted from user input.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Moment.js 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Moment.js是一个 JavaScript 日期库。用于解析、验证、操作和格式化日期。 Moment.js 存在安全漏洞，该漏洞源于使用了低效的解析算法。在没有健全长度检查的情况下将用户提供的字符串传递给时刻构造函数的用户很容易受到正则拒绝服务攻击。
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
moment moment >= 2.18.0, < 2.29.4 -

II. Public POCs for CVE-2022-31129

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III. Intelligence Information for CVE-2022-31129

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Patches & Fixes for CVE-2022-31129 (1)

Vendor Advisories for CVE-2022-31129 (3)

Mailing List Discussions for CVE-2022-31129 (5)

IV. Related Vulnerabilities

Same product: moment
Same vendor: moment
Same weakness: CWE-400

V. Comments for CVE-2022-31129

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