CPANSA-perl-2023-47039: perl vulnerability
| Publisher |
giterlizzi |
Document category |
csaf_security_advisory |
| Initial release date |
2023-10-30T00:00:00 |
Engine |
CSAF Perl Toolkit 0.25 |
| Current release date |
2023-10-30T00:00:00 |
Build Date |
|
| Current version |
1 |
Status |
final |
| CVSS v3.1 Base Score |
7.8
|
Severity |
|
| Original language |
|
Language |
en |
| Also referred to |
|
Vulnerability Description
Perl for Windows relies on the system path environment variable to find the shell (cmd.exe). When running an executable which uses Windows Perl interpreter, Perl attempts to find and execute cmd.exe within the operating system. However, due to path search order issues, Perl initially looks for cmd.exe in the current working directory.
An attacker with limited privileges can exploit this behavior by placing cmd.exe in locations with weak permissions, such as C:\ProgramData. By doing so, when an administrator attempts to use this executable from these compromised locations, arbitrary code can be executed.
Vulnerabilities
CVE-2023-47039
Vulnerability DescriptionA vulnerability was found in Perl. This security issue occurs while Perl for Windows relies on the system path environment variable to find the shell (`cmd.exe`). When running an executable that uses the Windows Perl interpreter, Perl attempts to find and execute `cmd.exe` within the operating system. However, due to path search order issues, Perl initially looks for cmd.exe in the current working directory. This flaw allows an attacker with limited privileges to place`cmd.exe` in locations with weak permissions, such as `C:\ProgramData`. By doing so, arbitrary code can be executed when an administrator attempts to use this executable from these compromised locations.
| Weakness |
CWE-122 : Heap-based Buffer Overflow
|
Product status
Known affected
| Product |
Score |
| perl less than 5.34.2 |
|
| perl greater than or equal 5.36.0 and less than 5.36.3 |
|
| perl equal =5.38.0 |
|
giterlizzi
Namespace: https://github.com/giterlizzi/
gdt@cpan.org
References
Revision history
| Version |
Date of the revision |
Summary of the revision |
| 1 |
Mon Oct 30 00:00:00 2023 |
First release |
Sharing rules
TLP:WHITE
For the TLP version see: https://www.first.org/tlp/