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CVE-2022-24713— Github regex 资源管理错误漏洞

一分钟漏洞结论

影响对象
rust-lang regex
利用判断
存在公开或 AI PoC，应优先验证
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Github regex是用于解析、编译和执行正则表达式的 Rust 库。 regex 存在安全漏洞，该漏洞源于不受信任的regex或由受信任的regex匹配的不受信任的输入引起的拒绝服务攻击。

CVSS 7.5 · High EPSS 14.46% · P96

可能的 ATT&CK 技术 1 AI

T1496 · Resource Hijacking
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一、 漏洞 CVE-2022-24713 基础信息

漏洞信息
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Vulnerability Title
Regular expression denial of service in Rust's regex crate
来源: CVE Program / CVE List V5
Vulnerability Description
regex is an implementation of regular expressions for the Rust language. The regex crate features built-in mitigations to prevent denial of service attacks caused by untrusted regexes, or untrusted input matched by trusted regexes. Those (tunable) mitigations already provide sane defaults to prevent attacks. This guarantee is documented and it's considered part of the crate's API. Unfortunately a bug was discovered in the mitigations designed to prevent untrusted regexes to take an arbitrary amount of time during parsing, and it's possible to craft regexes that bypass such mitigations. This makes it possible to perform denial of service attacks by sending specially crafted regexes to services accepting user-controlled, untrusted regexes. All versions of the regex crate before or equal to 1.5.4 are affected by this issue. The fix is include starting from regex 1.5.5. All users accepting user-controlled regexes are recommended to upgrade immediately to the latest version of the regex crate. Unfortunately there is no fixed set of problematic regexes, as there are practically infinite regexes that could be crafted to exploit this vulnerability. Because of this, it us not recommend to deny known problematic regexes.
来源: 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
来源: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
来源: CVE Program / CVE List V5
Vulnerability Title
Github regex 资源管理错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Github regex是用于解析、编译和执行正则表达式的 Rust 库。 regex 存在安全漏洞，该漏洞源于不受信任的regex或由受信任的regex匹配的不受信任的输入引起的拒绝服务攻击。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
rust-lang regex < 1.5.5 -

二、漏洞 CVE-2022-24713 的公开POC

# POC 描述 源链接 神龙链接
1 Proof of Concept/Test for CVE-2022-24713 on Ubuntu https://github.com/ItzSwirlz/CVE-2022-24713-POC POC详情
2 Proof of Concept/Test for CVE-2022-24713 on Ubuntu https://github.com/JPeisach/CVE-2022-24713-POC POC详情
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三、漏洞 CVE-2022-24713 的情报信息

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CVE-2022-24713 补丁与修复 (1)

CVE-2022-24713 厂商安全公告 (5)

CVE-2022-24713 邮件列表归档 (4)

IV. Related Vulnerabilities

Same vendor: rust-lang
Same weakness: CWE-400

V. Comments for CVE-2022-24713

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