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Ls Advisories Suse Esm H240
Price Tag 1security advisorymedium severityremote command execution

SuSE: 2003:005 Medium: susehelp Remote Command Execution

Remote attackers can insert certain characters in CGI queries to the susehelp system tricking it into executing arbitrary code as the "wwwrun" user.. ______________________________________________________________________________ SuSE Security Announcement Package: susehelp Announcement-ID: SuSE-SA:2003:005 Date: Mon Jan 20 14:00:00 CET 2003 Affected products: SuSE Linux 8.1, SuSE Linux Enterprise Server 8, SuSE Linux Office Server, SuSE Linux Openexchange Server 4 Vulnerability Type: remote command execution Severity (1-10): 5 SuSE default package: no Cross References: - Content of this advisory: 1) security vulnerability resolved: Remote command execution due to broken filtering of shell metacharacters in CGI queries. problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: mod_php4 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information During a code review of the susehelp package the SuSE Security Team recognized that the security checks done by the susehelp CGI scripts are insufficient. Remote attackers can insert certain characters in CGI queries to the susehelp system tricking it into executing arbitrary code as the "wwwrun" user. Please note that this is only a vulnerability if you have a web server running and configured to allow access to the susehelp system by remote sites. We nevertheless recommend an update of this package. As a temporary workaround you may un-install the susehelp package by issuing the following command as root: rpm -e --nodepssusehelp Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web. SuSE-8.1: 6dde3d487385fd6a935643b1a0d92b86 cd91f786f056518a11192b1ce9597783 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - mod_php4 A buffer overflow in the wordwrap() function has been reported. New packages will be prepared and should be availble soon on our ftp servers. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key This email address is being protected from spambots. You need JavaScript enabled to view it. ), the checksums show proof of the authenticity of the package. Wedisrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig to verify the signature of the package, where is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an un-installed rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key " This email address is being protected from spambots. You need JavaScript enabled to view it. " upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the top-level directory of the first CD (pubring.gpg) and at . - SuSE runs two security mailing lists to which any interested party may subscribe: This email address is being protected from spambots. You need JavaScript enabled to view it. - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. Tosubscribe, send an email to . This email address is being protected from spambots. You need JavaScript enabled to view it. - SuSE's announce-only mailing list. Only SuSE's security announcements are sent to this list. To subscribe, send an email to . For general information or the frequently asked questions (faq) send mail to: or respectively. ==================================================================== SuSE's security contact is or . The public key is listed below. ====================================================================______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the clear-text signature shows proof of the authenticity of the text. SuSE Linux AG makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key . An update is now available for susehelp to mitigate the risks associated with the remote code execution vulnerability outlined in the SuSE Security Bulletin: 2003:005.. remote Execution Risk, SuSE Security Announcement, CGI Vulnerability. . Severity: Medium. LinuxSecurity.com Team

Calendar 2 Jan 20, 2003 •Medium SuSE
100
Ls Advisories Suse Esm H240
Price Tag 1security advisorysoftware updateremote command execution

SuSE 7.2, 7.3: 2001:041 Moderate: Remote Command Execution in susehelp

Some of these scripts open files in an insecure manner, thus allowing remote attackers to execute arbitrary commands as wwwrun-user on the server running susehelp package.. ______________________________________________________________________________ SuSE Security Announcement Package: susehelp Announcement-ID: SuSE-SA:2001:041 Date: Thu Nov 22 11:36:00 MET 2001 Affected SuSE versions: 7.2, 7.3 Vulnerability Type: remote command execution Severity (1-10): 8 SuSE default package: yes Other affected systems: no Content of this advisory: 1) security vulnerability resolved: CGI vulnerability in susehelp. 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 The susehelp package contains several CGI-scripts to provide a flexible help-system to the user. Some of these scripts open files in an insecure manner, thus allowing remote attackers to execute arbitrary commands as wwwrun-user on the server running susehelp package. These bugs have been fixed in the newly available packages. Please update your susehelp package immediately if present on your system. SuSE-7.3: 8b441a44bda65f5e162d326d1e6ed1df source rpm: 9e38fa3bbc650974c8138981754610b6 SuSE-7.2: 27789618aeb317225c8262016afb65b9 source rpm: fd5a85ebada13eb6de95067b066746c0 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - The ziptool program runs setuid root in the easy permission mode and contains anoverflow which allows local attackers to gain root privileges. A zipdrive must be configured and a zipdisk being inserted in order to exploit the bug. The overflow has been fixed. Please update your packages. - The ncpfs package containing the setuid root programs ncpmount and ncpumount was vulnerable to local bufferoverflow attacks. The package has been fixed. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key This email address is being protected from spambots. You need JavaScript enabled to view it. ), the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published onthe ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig to verify the signature of the package, where is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key " This email address is being protected from spambots. You need JavaScript enabled to view it. " upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the toplevel directory of the first CD (pubring.gpg) and at . - SuSE runs two security mailing lists to which any interested party may subscribe: This email address is being protected from spambots. You need JavaScript enabled to view it. - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to . This email address is being protected from spambots. You need JavaScript enabled to view it. - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to . For general information or the frequently asked questions (faq) send mail to: or respectively. ================================================== SuSE's security contact is . The public key is listed below. ==================================================______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the cleartext signature shows proof of the authenticity of the text. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see The GNU Privacy Guard mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12CohGBBARAgAGBQI7HmHDAAoJEJ5A4xAACqukTlQAoI4QzP9yjPohY7OU F7J3eKBTzp25AJ42BmtSd3pvm5ldmognWF3Trhp+GZkBogQ57vSBEQQAk/GN+ftr 7+DBlSoixDDpfRnUk+jApGEt8hCnrnjVnPs/9Cr33+CXLQbILOO7Y5oiPbJdHh45 t4E0fKyLVzDerCRFB1swz/mNDxT26DLysdBV5fwNHTPhxa67goAZVrehQPqJEckk IpYriOaYcKpF3n5fQIZMEfMaHEElQhcXML8AoJVXDkJYh7vI8EUB8ZURNLZMEECN A/sH0MCnb4Q6ZcRyeZ3+1PHP8hP73b6TepRdLZhaylwVF/iu7uIn62ZUL4//NTOC DY7V63qg4iba/fUbOsWtEnGaiE7mQuAlsSWvRspwRA9/g9rdVf3/JdLJrLmKBThe yG+PSJE3W7cAE4ZWafGxIRCwXhmj3TQnJn2euqylHRubEQP/aL53NZK0kBdvrKgf f6O8Of6tqoss8Dkk55I7QVFSp+My1Dn+mngQKFejTAgtyo/WmR3wPjQ9HoT2lRiY I2lTRYT4uMdHuwVC3b4DqAKmoy375FERwHkrMVyKBJslv8QtbAWw5A1CAUseaHo+ 91wmYJ4/4p6YUahqbG/tZyhbxfq0KFN1U0UgUGFja2FnZSBTaWduaW5nIEtleSA8 YnVpbGRAc3VzZS5kZT6IXAQTEQIAHAUCOe70gQUJA8JnAAQLCgMEAxUDAgMWAgEC F4AACgkQqE7a6JyACspfLACffAYA+NM8NBhyRyH+nTX58CNjwLIAoIx9fj52BJe0 xY7WbKoXs1+72b2AiEYEEBECAAYFAjpwXlIACgkQnkDjEAAKq6TczgCgi+ddhWb7 +FWcfeE6WwPZccqAHowAnjjtRyGwHLQHr5OTFAYTXi2Wv6jNiQEVAwUQOnBgb3ey 5gA9JdPZAQE1pwf/QJ+b34lFBNVUJ7fk/xGJJREt7V12iSafaRzGuH8xWvIz1bb+ VARxnnt16FDQ1cDNjoEhCEmcW83Vxp6iJXE9PE8wVA/Yue/bon5JS7J69+UiQ2eq 2pudfwljp52lYVM53jgPYEz0q/v3091nlZ8CYkAkN9JDS1lV1gEzJ7J0+POngDpU +lDQT2EC6VKaxeWK8pNt6UFDwICRDQxKnlOoiDvTrdWT7QdJZ4sPv8Qotdw9+tKN bWQ2DqdIRxyTdw9xDfAtcj6mXeQr7852Lwem1gSKVnEYHZ9g1FTJqVOutY8KhpUc 9RfOCRv8XuIxrs4KSbfSF0s8qIRCQelxufg9AbkCDQQ57vSSEAgAhJHQTejMX+Vr 6g1pHDEcusJ63fQ2CfFFE5iE9okH9O7UVCiSfb9CV38dmeHdPCEEjDUWquFYEnvj 3WICMtH249t1Ymuf4Du3yRKQ9oXdn/qTJzlrx9qzjiG3mH7ocwHOgUIwCrZoEdBE VE2n0zPVm+hddwjWWTWXw6pxQz+i9dsN89xexRV5M9O0bNwCLaNWX2GXeLAkqTK/ 9EuZy6x2yLxi6du9YYUAXkZpqBhCjtiUXpRoFCdglMznbcAyCk9C2wqb2j/D1Z2B eSBaGCSFkR6pRLebnE17LWcu72Iy+r0z+JecbPiyDpDZj4apn7IC81aNFGi7fNIT sHODbwwjiwADBgf/YPvVdzkc8OC7ztacEWCanwylKvxCdKzTDA+DfES6WUYShyiV JvZzRy25LJ5WcK20kzOS6Qv1OrIXiz/pdGy1aKtJZrAnFEsofpmOj8VoqyyFgp/y AGQBp12+mXek7SCZRhuqalDfEMRiWEJ6J5dLkyShyRDWyPbFh0HXE7QTHN+IKKxx QqNQXL6Z3NSxS61p+5n6BseiDUI39xxkKTFwFrkgUIc5Gs2Or2lhaWvGwSfoCmwb sklszZt6xbU+R0SjFqTvjPWx6eHfqbmNC9WMDdTjGrXDDKXFp2aYlokfN6It9vsb VlGNlOwHt/JjGoPMxW6Xqj0FLA7/VewgCdXW64hMBBgRAgAMBQI57vSSBQkDwmcA AAoJEKhO2uicgArKSyIAmwUHf/vtKQfcmVg4asR7U6XQl0bAAJ4pO22B5U8UH6IY l2LBCXFqw5+5fA==Jnnf -----END PGP PUBLIC KEY BLOCK----- . A major remote code execution vulnerability in the susehelp package poses serious risks. Users must update to version 2.5.2 to mitigate these security flaws. susehelp security advisory, remote command execution fix, critical suse update. . Severity: Important. LinuxSecurity.com Team

Calendar 2 Nov 22, 2001 •Important SuSE
Banner 2 1028x280 1708121730 1 1771599631
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