Vulnerability identifier: #VU22774

Vulnerability risk: Low

CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-18409

CWE-ID: CWE-269

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Brakeman
Other software / Other software solutions

Vendor: presidentbeef

Description

The vulnerability allows a remote attacker to escalate privilege on the target system.

The vulnerability exists due to missing access control in the "ruby_parser-legacy-1.0.0/lib/ruby_parser/legacy/ruby_parser.rb" file. A local user can escalate privileges and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Brakeman: 0.0.1 - 4.7.0

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External links
http://github.com/zenspider/ruby_parser-legacy/issues/1

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.