#VU811 Privilege Escalation in Perl - CVE-2016-1238

Vulnerability identifier: #VU811

Vulnerability risk: Medium

CVSSv4.0: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-1238

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Perl
Universal components / Libraries / Scripting languages

Vendor: Perl

Description

The vulnerability allows a local user to obtain elevated privileges on the target system.

The vulnerability exists due to improper input validation. By sending and tricking the victim to load a specially crafted code a malicious user can cause arbitrary code execution that allows them to gain root privileges.

Successful exploitation of this vulnerability will result in arbitrary code execution that allows a local attacker to get elevated privilegs on the vulnerable system.

Mitigation
Update to version 5.22.3 or 5.24.1.

Vulnerable software versions

Perl: 5.003, 5.4, 5.005, 5.5, 5.6.0 - 5.6.2, 5.8.0 - 5.8.8, 5.10.0 - 5.10.1, 5.11.0 - 5.11.5, 5.12.0 - 5.12.3, 5.13.1 - 5.13.11, 5.14.0 - 5.14.1, 5.15, 5.16

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External links
https://www.nntp.perl.org/group/perl.perl5.porters/2016/07/msg238271.html

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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.