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CVE-2021-4286— cocagne pysrp _ctsrp.py calculate_x information exposure

Quick assessment

Affected
cocagne pysrp
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.

pysrp是Tom Cocagne个人开发者的一个安全远程密码协议（SRP）的 Python 实现。 pysrp 1.0.16之前版本存在安全漏洞，该漏洞源于文件 srp/_ctsrp.py 的函数 calculate_x，操纵导致信息差异。

CVSS 2.6 · Low EPSS 0.74% · P54

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2021-4286

Vulnerability Information
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Vulnerability Title
cocagne pysrp _ctsrp.py calculate_x information exposure
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as problematic, has been found in cocagne pysrp up to 1.0.16. This issue affects the function calculate_x of the file srp/_ctsrp.py. The manipulation leads to information exposure through discrepancy. Upgrading to version 1.0.17 is able to address this issue. The name of the patch is dba52642f5e95d3da7af1780561213ee6053195f. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216875.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过差异性导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
pysrp 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pysrp是Tom Cocagne个人开发者的一个安全远程密码协议（SRP）的 Python 实现。 pysrp 1.0.16之前版本存在安全漏洞，该漏洞源于文件 srp/_ctsrp.py 的函数 calculate_x，操纵导致信息差异。
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
cocagne pysrp 1.0.0 -

II. Public POCs for CVE-2021-4286

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III. Intelligence Information for CVE-2021-4286

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Patches & Fixes for CVE-2021-4286 (2)

Vendor Advisories for CVE-2021-4286 (2)

Other References for CVE-2021-4286 (1)

IV. Related Vulnerabilities

Same weakness: CWE-203

V. Comments for CVE-2021-4286

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