CVE-2023-47039
A vulnerability was found in Perl.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A 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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.42% probability · 35th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-122, CWE-787
- Affected
- perl/perl
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2023-47039Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1056746Mailing List, Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=2249525Issue Tracking
- https://access.redhat.com/security/cve/CVE-2023-47039Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1056746Mailing List, Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=2249525Issue Tracking
- https://perldoc.perl.org/perl5382delta#CVE-2023-47039-Perl-for-Windows-binary-hijacking-vulnerability
- https://security.netapp.com/advisory/ntap-20240208-0005/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.