Multiple vulnerabilities in Build Failure Analyzer plugin for Jenkins



Published: 2019-12-18
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2019-16554
CVE-2019-16555
CVE-2019-16553
CWE-ID CWE-284
CWE-400
CWE-352
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Build Failure Analyzer
Web applications / Modules and components for CMS

Vendor Jenkins

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Improper access control

EUVDB-ID: #VU23671

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-16554

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to the affected plugin does not perform a permission check in a method performing form validation. A remote authenticated user with Overall/Read access can have Jenkins evaluate a computationally expensive regular expression.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Build Failure Analyzer: 1.2.0 - 1.24.1

External links

http://jenkins.io/security/advisory/2019-12-17/#SECURITY-1651


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.

2) Resource exhaustion

EUVDB-ID: #VU23672

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-16555

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a user-supplied regular expression is processed in a way that is not interruptible. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Build Failure Analyzer: 1.2.0 - 1.24.1

External links

http://jenkins.io/security/advisory/2019-12-17/#SECURITY-1651


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

3) Cross-site request forgery

EUVDB-ID: #VU23670

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-16553

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website, such as supply a computationally expensive regular expression that will hang the request handling thread.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Build Failure Analyzer: 1.2.0 - 1.24.1

External links

http://jenkins.io/security/advisory/2019-12-17/#SECURITY-1651


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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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