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Stored cross-site scripting in Brakeman plugin for Jenkins



Published: 2020-02-13
Severity Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-2122
CWE ID CWE-79
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Brakeman
Web applications / Modules and components for CMS

Vendor Jenkins

Security Advisory

This security advisory describes one low risk vulnerability.

1) Stored cross-site scripting

Severity: Low

CVSSv3: 5.6 [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-2122

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to the affected software does not escape values received from parsed JSON files when rendering them. A remote authenticated attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Brakeman: 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10, 0.11, 0.12

CPE External links

http://www.openwall.com/lists/oss-security/2020/02/12/3
https://jenkins.io/security/advisory/2020-02-12/#SECURITY-1644

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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