CVE-2022-26650— Apache ShenYu (incubating) Regular expression denial of service
Quick assessment
Affected
Apache Software Foundation Apache ShenYu (incubating)
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.
Apache ShenYu是美国阿帕奇（Apache）基金会的一个异步的，高性能的，跨语言的，响应式的 API 网关。 Apache ShenYu存在安全漏洞，该漏洞源于在ShenYu-Bootstrap的RegexPredicateJudge.java 中使用 Pattern.matches(conditionData.getParamValue(), realData) 进行判断，其中两个参数都由用户控制。攻击者利用该漏洞传入恶意正则表达式和字符，从而导致资源耗尽。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-26650
Vulnerability Information
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Vulnerability Title
Apache ShenYu (incubating) Regular expression denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
In Apache ShenYui, ShenYu-Bootstrap, RegexPredicateJudge.java uses Pattern.matches(conditionData.getParamValue(), realData) to make judgments, where both parameters are controllable by the user. This can cause an attacker pass in malicious regular expressions and characters causing a resource exhaustion. This issue affects Apache ShenYu (incubating) 2.4.0, 2.4.1 and 2.4.2 and is fixed in 2.4.3.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
Apache ShenYu 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache ShenYu是美国阿帕奇（Apache）基金会的一个异步的，高性能的，跨语言的，响应式的 API 网关。 Apache ShenYu存在安全漏洞，该漏洞源于在ShenYu-Bootstrap的RegexPredicateJudge.java 中使用 Pattern.matches(conditionData.getParamValue(), realData) 进行判断，其中两个参数都由用户控制。攻击者利用该漏洞传入恶意正则表达式和字符，从而导致资源耗尽。
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 |
|---|---|---|---|---|
| Apache Software Foundation | Apache ShenYu (incubating) | unspecified ~ 2.4.3 | - |
|
II. Public POCs for CVE-2022-26650
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2022-26650 (2)
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https://lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673 x_refsource_MISC
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V. Comments for CVE-2022-26650
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