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Gentoo: GLSA-200409-05 Normal: Gallery Command Execution Issue

The Gallery image upload code contains a temporary file handling vulnerability which could lead to execution of arbitrary commands.. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200409-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Gallery: Arbitrary command execution Date: September 02, 2004 Bugs: #60742 ID: 200409-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= The Gallery image upload code contains a temporary file handling vulnerability which could lead to execution of arbitrary commands. Background ========= Gallery is a PHP script for maintaining online photo albums. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 www-apps/gallery < 1.4.4_p2 > = 1.4.4_p2 Description ========== The upload handling code in Gallery places uploaded files in a temporary directory. After 30 seconds, these files are deleted if they are not valid images. However, since the file exists for 30 seconds, a carefully crafted script could be initiated by the remote attacker during this 30 second timeout. Note that the temporary directory has to be located inside the webroot and an attacker needs to have upload rights either as an authenticated user or via "EVERYBODY". Impact ===== An attacker could run arbitrary code as the user running PHP. Workaround ========= There are several workarounds to this vulnerability: * Make sure that your temporary directory is not contained in the webroot; bydefault it is located outside the webroot. * Disable upload rights to all albums for "EVERYBODY"; upload is disabled by default. * Disable debug and dev mode; these settings are disabled by default. * Disable allow_url_fopen in php.ini. Resolution ========= All Gallery users should upgrade to the latest version: # emerge sync # emerge -pv "> =www-apps/gallery-1.4.4_p2" # emerge "> =www-apps/gallery-1.4.4_p2" References ========= [ 1 ] Full Disclosure Announcement [ 2 ] Gallery Announcement ;name=News&file=article&sid=134&mode=threadℴ=0&thold=0 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200409-05 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org/. License ====== Copyright 2004 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/1.0/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBN4QuzKC5hMHO6rkRAvjRAJ9ew8O+G6tQ/+wifIJkqYadFCU0cgCeK75X 9F2kemN3tO5SBNb80LQkLjc=KCrK -----END PGP SIGNATURE----- . The Gentoo Linux Security Advisory GLSA 200409-05 details a serious vulnerability in the Gallery app's image upload feature, allowing file upload exploits. Users should upgrade to the latest stable version and enhance upload directory permissions and server security protocols to combat these risks and fortify defenses against future threats. Gallery Upload Issue,Gentoo Security Advisory,Arbitrary Command Execution. . LinuxSecurity.com Team

Sep 02, 2004 Gentoo