CVE-2020-26302
Quick assessment
Affected
arasatasaygin is.js
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.
is.js是aras个人开发者的一个通用检查库。 is.js 0.9.0及之前版本存在资源管理错误漏洞，该漏洞源于容易受到正则表达式拒绝服务(ReDoS)攻击。
Possible ATT&CK Techniques 1 AI
T1499.002 · Service Exhaustion Flood
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I. Basic Information for CVE-2020-26302
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
is.js is a general-purpose check library. Versions 0.9.0 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). is.js uses a regex copy-pasted from a gist to validate URLs. Trying to validate a malicious string can cause the regex to loop “forever." This vulnerability was found using a CodeQL query which identifies inefficient regular expressions. is.js has no patch for this issue.
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
is.js 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
is.js是aras个人开发者的一个通用检查库。 is.js 0.9.0及之前版本存在资源管理错误漏洞，该漏洞源于容易受到正则表达式拒绝服务(ReDoS)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 |
|---|---|---|---|---|
| arasatasaygin | is.js | 0.9.0 ~ 0.9.0 | - |
|
II. Public POCs for CVE-2020-26302
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2020-26302 (2)
IV. Related Vulnerabilities
Same weakness: CWE-400
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V. Comments for CVE-2020-26302
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