========================================================================
CVE-2011-10007 CPAN Security Group
========================================================================
CVE ID: CVE-2011-10007
Distribution: File-Find-Rule
Versions: through 0.34
MetaCPAN: https://metacpan.org/dist/File-Find-Rule
VCS Repo: https://github.com/richardc/perl-file-find-rule
File::Find::Rule through 0.34 for Perl is vulnerable to Arbitrary Code
Execution when `grep()` encounters a crafted file name
Description
-----------
File::Find::Rule through 0.34 for Perl is vulnerable to Arbitrary Code
Execution when `grep()` encounters a crafted filename.
A file handle is opened with the 2 argument form of `open()` allowing
an attacker controlled filename to provide the MODE parameter to
`open()`, turning the filename into a command to be executed.
Example:
$ mkdir /tmp/poc; echo > "/tmp/poc/|id"
$ perl -MFile::Find::Rule \
-E 'File::Find::Rule->grep("foo")->in("/tmp/poc")'
uid=1000(user) gid=1000(user) groups=1000(user),100(users)
Problem types
-------------
- CWE-78 Improper Neutralization of Special Elements used in an OS
Command ('OS Command Injection')
Solutions
---------
Users should update to a fixed version when available, or apply the
patch provided in the references section, or use a patched version
provided by their OS distribution
References
----------
https://metacpan.org/release/RCLAMP/File-Find-Rule-0.34/source/lib/File/Find/Rule.pm#L423
https://rt.cpan.org/Public/Bug/Display.html?id=64504
https://github.com/richardc/perl-file-find-rule/pull/4
https://github.com/richardc/perl-file-find-rule/commit/df58128bcee4c1da78c34d7f3fe1357e575ad56f.patch
Timeline
--------
- 2011-01-04: A bug was reported by Kevin Ryde to the upstream RT
bugtracker described as "grep() can truncate files".
- 2025-06-04: CPANSec became aware of the bug and started triage. Code
execution impact was confirmed, a patch was made, and the author, the
distros list and additional downstream vendors were notified.
From e38923179b889e7b03e549130a38ec4e4a28b7d8 Mon Sep 17 00:00:00 2001
From: Stig Palmquist <s...@stig.io>
Date: Thu, 5 Jun 2025 03:45:50 +0200
Subject: [PATCH] Fix CVE-2011-10007 for File::Find::Rule
---
lib/File/Find/Rule.pm | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/File/Find/Rule.pm b/lib/File/Find/Rule.pm
index feccc76..d4dc475 100644
--- a/lib/File/Find/Rule.pm
+++ b/lib/File/Find/Rule.pm
@@ -420,7 +420,7 @@ sub grep {
$self->exec( sub {
local *FILE;
- open FILE, $_ or return;
+ open FILE, '<', $_ or return;
local ($_, $.);
while (<FILE>) {
for my $p (@pattern) {
--
2.49.0
