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87
security advisorycriticaldebianDebian: 835-1 Critical: Cfengine Insecure File Handling DoS
Updated package.. - --------------------------------------------------------------------------Debian Security Advisory DSA 835-1
Oct 01, 2005
•Critical
Debian
91
security advisoryhigh severitygentooGentoo Linux: GLSA-200408-08 High: Cfengine Heap Corruption Risk
Cfengine is vulnerable to a remote root exploit from clients in AllowConnectionsFrom.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200408-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: Cfengine : RSA Authentication Heap Corruption Date: August 10, 2004 Bugs: #59895 ID: 200408-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= Cfengine is vulnerable to a remote root exploit from clients in AllowConnectionsFrom. Background ========= Cfengine is an agent/software robot and a high level policy language for building expert systems to administrate and configure large computer networks. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/cfengine = 2.1.8 net-misc/cfengine > = 2.0.0 > = 2.1.8 Description ========== Two vulnerabilities have been found in cfservd. One is a buffer overflow in the AuthenticationDialogue function and the other is a failure to check the proper return value of the ReceiveTransaction function. Impact ===== An attacker could use the buffer overflow to execute arbitrary code with the permissions of the user running cfservd, which is usually the root user. However, before such an attack could be mounted, the IP-based ACL would have to be bypassed. With the second vulnerability, an attacker could cause a denial of service attack. Workaround ========= There is no known workaround at this time. All users are encouraged to upgrade to the latest available version ofCfengine. Resolution ========= All Cfengine users should upgrade to the latest version: # emerge sync # emerge -pv "> =net-misc/cfengine-2.1.8" # emerge "> =net-misc/cfengine-2.1.8" References ========= [ 1 ] Corelabs Advisory ;idxseccion=10 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200408-08 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
Aug 10, 2004
Gentoo
100
security advisorymedium severityupdate informationSuSE: 2000:1011 Medium: cfengine Remote Compromise Advisory
There are several format string vulnerabilities in GNU cfengine.. ______________________________________________________________________________ SuSE Security Announcement Package: cfengine Date: Wednesday, October 11th, 2000 19:15 MEST Affected SuSE versions: 5.3, 6.0, 6.1, 6.3, 6.4, 7.0 Vulnerability Type: remote (root) compromise Severity (1-10): 5 SuSE default package: no Other affected systems: Linux systems using the pam_smb module Content of this advisory: 1) security vulnerability resolved: pam_smb problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information GNU cfengine is an abstract programming language for system administrators of large heterogeneous networks, used for maintenance and administration. Pekka Savola has found several format string vulnerabilities in syslog() calls that can be abused to either make the cfengine program to segfault and die or to execute arbitrary commands as the user the cfengine process runs as (usually root). The cfengine package is not installed per default, and not activated when installed. Thus, the vulnerability affects only systems where the administrator actively uses this tool. The only efficient fix for the problem is an update of the cfengine package since access restrictions limit the attack possibilities to a closed group of hosts/users only. Download the update package from locations desribed below and install the package with the command `rpm -Fhv file.rpm'. The md5sum for each file is in the line below. You can verify the integrity of the rpm files using thecommand `rpm --checksig --nogpg file.rpm', independently from the md5 signatures below. i386 Intel Platform: SuSE-7.0 dc42c40f3d38756f03d0fe120854438f source rpm: 2fd8a119cfef86239ce8fa96eb84115d SuSE-6.4 751acfe93106296ce1109a2502756802 source rpm: 843b0f958737d528d7160f7fada0e480 SuSE-6.3 c8acb6a4cb25bf5794a58cbdddeadb3c source rpm: 0fc789bf5ee81448416e3b70665eac5e SuSE-6.2 414b3b1ba8d1f6c54e8edf1bc06e3fd4 source rpm: 4cbc2ee010505ebd386c77c275cbe623 SuSE-6.1 c90ee6da76d111f537ae3bf0e3a8410d source rpm: de796070b0df0e7ff564ba73ef02fa2e SuSE-6.0 please use the update packages for the SuSE-6.1 distribution. SuSE-5.3 a47f6a4a9affbe258d3c83b569b1dba4 546bc5a8a2e2c4b717d83fe4c04519bd Sparc Platform: SuSE-7.0 3517304c0fd9ff411631ea4c8191516f source rpm: fdc47c721783442a605ca209fa088122 AXP Alpha Platform: SuSE-6.4 409a3b91a67f383a330ea26faccb5eef source rpm: b86fe2ebe7e971c98203c977543ffddc SuSE-6.3 Please use the update packages for the SuSE-6.4 distribution. SuSE-6.1 b15950b227f1e77e783dba1ebf512df4 source rpm: d38bc69b3024e375b3757b869fab88df PPC Power PC Platform: SuSE-7.0 2ee85ef27d51cac7ac1d574e8233aae5 source rpm: 282c56270f5ecc8b58cc8be27472f6aa SuSE-6.4 ddc0e11f730e2fbb2ef5462987eadffa source rpm: e2f61fcf0e0598f673fc93411fbbbb18 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - gnorpm A race condition has been found in the gnorpm program, a GUI for the rpm system. The issue will be addressed in a following advisory. - ncurses The ncurseslibrary contains buffer overflows that are exploitable when user-supplied terminfo databases are processed. This imposes a security risk on programs/binaries that are linked against libncurses and run with special privileges. Both workaround and clean solution is to remove the suid bit from all executable files with setuid bit set. The issue will be addressed in a following security announcement. - apache mod_rewrite, php A bug has been discovered in the apache package that allows attackers to read arbitrary files on a system that runs apache. The responsible apache module named "mod_rewrite" is not used by default on SuSE installations of the apache package. The issue will be addressed in a following security announcement. - usermode/userhelper userhelper is a suid helper program designed to let the user who is logged on to the console execute some programs with root privileges. SuSE distributions do not contain the usermode package and therefore are not vulnerable to the security problems recently discovered in the usermode package. - tmpwatch The tmpwatch packages as shipped with SuSE distributions are not vulnerable to the attacks as discussed on security forums because we ship an older version that does not provide the functionality that can be exploited. - lprNG The versions of the lprNG package that come with SuSE distributions are not vulnerable to the format string parsing errors as discussed in security forums. - traceroute The traceroute program has been found vulnerable to a bug (`traceroute -g 1 -g 1') in many distributions. Newer SuSE distributions have a different implementation of the traceroute program and are not vulnerable to the bug found by Pekka Savola . The vulnerability could not be verified in older SuSEdistributions. ______________________________________________________________________________ 3) standard appendix: SuSE runs two security mailing lists to which any interested party may subscribe:
Oct 11, 2000
•Medium
SuSE
87
security advisorydebiansymlink attackDebian: cfengine-1.4.9 moderate: Symlink Risk in Temp File Handling
There is an error in the way the cfengine package handles temporary files whenit runs the tidy action on homedirectories. This error makes it susceptible tosymlink attacks.. Date Reported: 15 Feb 1999 Affected Packages: cfengine Vulnerable: Yes For more information: The maintainer of Debian GNU/Linux cfengine package found a error in the way cfengine handles temporary files when it runs the tidy action on homedirectories, which makes it susceptible to a symlink attack. The author has been notified of the problem but has not released a fix yet. Fixed in: source: _1.4.9.orig.tar.gz .4.9-3.diff.gz -3.dsc i386: m68k: . Identified weakness in cfengine related to temporary file management, creating potential symlink exploitation risks. As of now, no fix has been released.. cfengine, Symlink Risk, Temporary File Handling, Security Alert. . LinuxSecurity.com Team
Jan 12, 2000
Debian
87
security advisorycritical riskdebianDebian: Important Cfengine Upgrade For Symlink Attack Risk
The maintainer of Debian GNU/Linux cfengine package found a error in the way cfengine handles temporary files when it runs the tidy action on homedirectories, which makes it suspectible to a symlink attack. The author has been notified of the problem but has not released a fix yet. . -----BEGIN PGP SIGNED MESSAGE----- The maintainer of Debian GNU/Linux cfengine package found a error in the way cfengine handles temporary files when it runs the tidy action on homedirectories, which makes it suspectible to a symlink attack. The author has been notified of the problem but has not released a fix yet. We recommend you upgrade your cfengine package immediately. wget url will fetch the file for you dpkg -i file.deb will install the referenced file. Debian GNU/Linux 2.0 alias hamm - ------------------------------- This version of Debian was released only for the Intel and the Motorola 680x0 architecture. Source archives: _1.4.9.orig.tar.gz MD5 checksum: 9c952524f2ce0a3dae6728f63d28a3ce .4.9-3.diff.gz MD5 checksum: 9de13ab36791319a846f5d50248b8ed5 -3.dsc MD5 checksum: 6d5f1d2c10ec0a0eeef07dd73244bb44 Intel architecture: MD5 checksum: c935781e39141fdcc5b3e3e7a1b5ac7b Motorola 680x0 architecture: MD5 checksum: 8628802255c66796f8acd3fe1844bb0b For not yet released architectures please refer to the appropriate directory . - -- Debian GNU/Linux . Security Managers .
Dec 13, 1999
•Important
Debian
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