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CVE-2023-23925— Switcher Client contains Regular Expression Denial of Service (ReDoS)

Quick assessment

Affected
switcherapi switcher-client-master
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.

switcher-client-master是Switcher API开源的一个用于使用 Switcher API 的 JavaScript SDK。 switcher-client-master 3.1.4 版本之前存在安全漏洞，该漏洞源于将输入信息用于构建正则表达式之前没有进行过滤。

CVSS 8.6 · High EPSS 0.54% · P45

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-23925

Vulnerability Information
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Vulnerability Title
Switcher Client contains Regular Expression Denial of Service (ReDoS)
Source: CVE Program / CVE List V5
Vulnerability Description
Switcher Client is a JavaScript SDK to work with Switcher API which is cloud-based Feature Flag. Unsanitized input flows into Strategy match operation (EXIST), where it is used to build a regular expression. This may result in a Regular expression Denial of Service attack (reDOS). This issue has been patched in version 3.1.4. As a workaround, avoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
switcher-client-master 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
switcher-client-master是Switcher API开源的一个用于使用 Switcher API 的 JavaScript SDK。 switcher-client-master 3.1.4 版本之前存在安全漏洞，该漏洞源于将输入信息用于构建正则表达式之前没有进行过滤。
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
switcherapi switcher-client-master < 3.1.4 -

II. Public POCs for CVE-2023-23925

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III. Intelligence Information for CVE-2023-23925

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Vendor Advisories for CVE-2023-23925 (1)

Other References for CVE-2023-23925 (1)

IV. Related Vulnerabilities

Same weakness: CWE-1333

V. Comments for CVE-2023-23925

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