Sensitive Data Exposure in Jenkins Affected by Security Vulnerability
CVE-2023-43494

4.3MEDIUM

Key Information:

Vendor

Jenkins
Status
Jenkins
Vendor
CVE Published:
20 September 2023

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 48%

What is CVE-2023-43494?

A vulnerability exists in Jenkins versions 2.50 through 2.423 and LTS versions 2.60.1 through 2.414.1, where sensitive build variables, including password parameters, are not adequately excluded from the search functionality in the build history widget. Attackers with Item/Read permissions can exploit this oversight by methodically guessing characters to uncover the values of confidential build variables stored in Jenkins, thereby posing a significant risk to sensitive information.

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Deploy the Patch

Affected Version(s)

Jenkins 0

Jenkins 0 < 2.50

Jenkins 2.424

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-43494
Created by mqxmm

References

https://www.jenkins.io/security/advisory/2023-09-20/#SECU...
vendor-advisory
http://www.openwall.com/lists/oss-security/2023/09/20/5

EPSS Score

48% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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