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Test ID:1.3.6.1.4.1.25623.1.0.120317
Category:Amazon Linux Local Security Checks
Title:Amazon Linux: Security Advisory (ALAS-2014-358)
Summary:The remote host is missing an update for the 'perl-Capture-Tiny' package(s) announced via the ALAS-2014-358 advisory.
Description:Summary:
The remote host is missing an update for the 'perl-Capture-Tiny' package(s) announced via the ALAS-2014-358 advisory.

Vulnerability Insight:
It was found [1] that the Capture::Tiny module, provided by the perl-Capture-Tiny package, used the File::temp::tmpnam module to generate temporary files:

./lib/Capture/Tiny.pm: $stash->{flag_files}{$which} = scalar tmpnam(),

This module makes use of the mktemp() function when called in the scalar context, which creates significantly more predictable temporary files. Additionally, the temporary file is created with world-writable (0666) permission. A local attacker could use this flaw to perform a symbolic link attack, overwriting arbitrary files accessible to a program using the Capture::Tiny module.

Affected Software/OS:
'perl-Capture-Tiny' package(s) on Amazon Linux.

Solution:
Please install the updated package(s).

CVSS Score:
3.6

CVSS Vector:
AV:L/AC:L/Au:N/C:N/I:P/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2014-1875
BugTraq ID: 65475
http://www.securityfocus.com/bid/65475
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128823.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128882.html
http://seclists.org/oss-sec/2014/q1/267
http://seclists.org/oss-sec/2014/q1/272
http://osvdb.org/102963
http://secunia.com/advisories/56823
XForce ISS Database: capturetiny-perl-symlink(91464)
https://exchange.xforce.ibmcloud.com/vulnerabilities/91464
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