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CVE-2023-1540— Observable Response Discrepancy in answerdev/answer

Quick assessment

Affected
answerdev answerdev/answer
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.

answer是一个开源的基于知识的社区软件。 answer 1.0.6之前版本存在安全漏洞，该漏洞源于可观察到响应差异。

AI Predicted 5.3 Difficulty: Easy EPSS 0.64% · P48

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2023-1540

Vulnerability Information
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Vulnerability Title
Observable Response Discrepancy in answerdev/answer
Source: CVE Program / CVE List V5
Vulnerability Description
Observable Response Discrepancy in GitHub repository answerdev/answer prior to 1.0.6.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
响应差异性信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
answer 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
answer是一个开源的基于知识的社区软件。 answer 1.0.6之前版本存在安全漏洞，该漏洞源于可观察到响应差异。
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
answerdev answerdev/answer unspecified ~ 1.0.6 -

II. Public POCs for CVE-2023-1540

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2023-1540

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Patches & Fixes for CVE-2023-1540 (1)

Vendor Advisories for CVE-2023-1540 (1)

Same Patch Batch · answerdev · 2023-03-21 · 9 CVEs total

CVE-2023-1539 Improper Restriction of Excessive Authentication Attempts in answerdev/answer
CVE-2023-1535 Cross-site Scripting (XSS) - Stored in answerdev/answer
CVE-2023-1536 Cross-site Scripting (XSS) - Stored in answerdev/answer
CVE-2023-1537 Authentication Bypass by Capture-replay in answerdev/answer
CVE-2023-1538 Observable Timing Discrepancy in answerdev/answer
CVE-2023-1541 Business Logic Errors in answerdev/answer
CVE-2023-1542 Business Logic Errors in answerdev/answer
CVE-2023-1543 Insufficient Session Expiration in answerdev/answer

IV. Related Vulnerabilities

Same product: answerdev/answer
Same vendor: answerdev
Same weakness: CWE-204

V. Comments for CVE-2023-1540

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