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CVE-2010-1748

Status Candidate

Overview

The cgi_initialize_string function in cgi-bin/var.c in the web interface in CUPS before 1.4.4, as used on Apple Mac OS X 10.5.8, Mac OS X 10.6 before 10.6.4, and other platforms, does not properly handle parameter values containing a % (percent) character without two subsequent hex characters, which allows context-dependent attackers to obtain sensitive information from cupsd process memory via a crafted request, as demonstrated by the (1) /admin?OP=redirect&URL=% and (2) /admin?URL=/admin/&OP=% URIs.

Related Files

Gentoo Linux Security Advisory 201207-10
Posted Jul 10, 2012
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201207-10 - Multiple vulnerabilities have been found in CUPS, some of which may allow execution of arbitrary code or local privilege escalation. Versions less than 1.4.8-r1 are affected.

tags | advisory, arbitrary, local, vulnerability
systems | linux, gentoo
advisories | CVE-2009-3553, CVE-2010-0302, CVE-2010-0393, CVE-2010-0540, CVE-2010-0542, CVE-2010-1748, CVE-2010-2431, CVE-2010-2432, CVE-2010-2941, CVE-2011-3170
MD5 | aee7c3eb6dad575d5514b1119c14f7fc
Debian Security Advisory 2176-1
Posted Mar 2, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2176-1 - Several vulnerabilities have been discovered in the Common UNIX Printing System. A null pointer dereference in RSS job completion notifications could lead to denial of service. It was discovered that incorrect file descriptor handling could lead to denial of service. A cross-site request forgery vulnerability was discovered in the web interface. Incorrect memory management in the filter subsystem could lead to denial of service. Emmanuel Bouillon discovered a symlink vulnerability in handling of cache files. Various other issues were also addressed.

tags | advisory, web, denial of service, vulnerability, csrf
systems | linux, unix, debian
advisories | CVE-2008-5183, CVE-2009-3553, CVE-2010-0540, CVE-2010-0542, CVE-2010-1748, CVE-2010-2431, CVE-2010-2432, CVE-2010-2941
MD5 | ff95ca5661531c2dca70538070770840
Mandriva Linux Security Advisory 2010-234
Posted Nov 16, 2010
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2010-234 - Cross-site request forgery vulnerability in the web interface in CUPS, allows remote attackers to hijack the authentication of administrators for requests that change settings. The _WriteProlog function in texttops.c in texttops in the Text Filter subsystem in CUPS before 1.4.4 does not check the return values of certain calloc calls, which allows remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted file. The web interface in CUPS, reads uninitialized memory during handling of form variables, which allows context-dependent attackers to obtain sensitive information from cupsd process memory via unspecified vectors. The cupsFileOpen function in CUPS before 1.4.4 allows local users, with lp group membership, to overwrite arbitrary files via a symlink attack on the /var/cache/cups/job.cache file. ipp.c in cupsd in CUPS 1.4.4 and earlier does not properly allocate memory for attribute values with invalid string data types, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly execute arbitrary code via a crafted IPP request. The updated packages have been upgraded to cups 1.3.10 and patched to correct these issues.

tags | advisory, remote, web, denial of service, arbitrary, local, csrf
systems | linux, mandriva
advisories | CVE-2010-0540, CVE-2010-0542, CVE-2010-1748, CVE-2010-2431, CVE-2010-2941
MD5 | e52014d9e8f25781093b99d1ef0aae90
Mandriva Linux Security Advisory 2010-232
Posted Nov 16, 2010
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2010-232 - Cross-site request forgery vulnerability in the web interface in CUPS, allows remote attackers to hijack the authentication of administrators for requests that change settings. The _WriteProlog function in texttops.c in texttops in the Text Filter subsystem in CUPS before 1.4.4 does not check the return values of certain calloc calls, which allows remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted file. The web interface in CUPS, reads uninitialized memory during handling of form variables, which allows context-dependent attackers to obtain sensitive information from cupsd process memory via unspecified vectors. The cupsFileOpen function in CUPS before 1.4.4 allows local users, with lp group membership, to overwrite arbitrary files via a symlink attack on the /var/cache/cups/job.cache file. ipp.c in cupsd in CUPS 1.4.4 and earlier does not properly allocate memory for attribute values with invalid string data types, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly execute arbitrary code via a crafted IPP request.

tags | advisory, remote, web, denial of service, arbitrary, local, csrf
systems | linux, mandriva
advisories | CVE-2010-0540, CVE-2010-0542, CVE-2010-1748, CVE-2010-2431, CVE-2010-2941
MD5 | 0a142572090555283bd000b8f69b81b0
Ubuntu Security Notice 952-1
Posted Jun 23, 2010
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 952-1 - Adrian Pastor and Tim Starling discovered that the CUPS web interface incorrectly protected against cross-site request forgery (CSRF) attacks. If an authenticated user were tricked into visiting a malicious website while logged into CUPS, a remote attacker could modify the CUPS configuration and possibly steal confidential data. It was discovered that CUPS did not properly handle memory allocations in the texttops filter. If a user or automated system were tricked into printing a crafted text file, a remote attacker could cause a denial of service or possibly execute arbitrary code with privileges of the CUPS user (lp). Luca Carettoni discovered that the CUPS web interface incorrectly handled form variables. A remote attacker who had access to the CUPS web interface could use this flaw to read a limited amount of memory from the cupsd process and possibly obtain confidential data.

tags | advisory, remote, web, denial of service, arbitrary, csrf
systems | linux, ubuntu
advisories | CVE-2010-0540, CVE-2010-0542, CVE-2010-1748
MD5 | f8815c48ecdff56c4b39e8d6b0f04a41
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