(Debian Issues Fix) Webmin Input Validation Flaw in 'miniserv.pl' May Let Remote Users Spoof Session IDs and Gain Root Access
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SecurityTracker Alert ID: 1006975 |
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SecurityTracker URL: http://securitytracker.com/id/1006975
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CVE Reference:
CVE-2003-0101
(Links to External Site)
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Updated: Nov 18 2003
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Original Entry Date: Jun 13 2003
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Impact:
Root access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 1.060
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Description:
A session ID spoofing vulnerability was reported in Webmin in the miniserv.pl component script. A remote user may be able to gain root access on the system.
Secure Net Service issued a security advisory warning that miniserv.pl does not properly filter user-supplied input during the BASIC authentication process. A remote user can inject meta-characters into a Base64-encoded BASIC authentication string to authenticate as an 'admin' user and spoof a valid session ID. The remote user may be able to execute arbitrary commands on the server with root privileges.
"Enable password timeouts" must be set in Webmin for this exploit to be successful.
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Impact:
A remote user may be able to gain 'admin' access and then execute commands with root privileges to gain root access on the system.
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Solution:
Debian has released a fix in version 0.94-7woody1 for the stable distribution (woody) and in version 1.070-1 for the unstable distribution (sid).
Debian GNU/Linux 3.0 alias woody:
Source archives:
http://security.debian.org/pool/updates/main/w/webmin/webmin_0.94-7woody1.dsc
Size/MD5 checksum: 1126 68e911f1b0ca669eb8ba250e3c8e9188
http://security.debian.org/pool/updates/main/w/webmin/webmin_0.94-7woody1.diff.gz
Size/MD5 checksum: 62990 1b96c1d52b1e3315861df4b9b788840e
http://security.debian.org/pool/updates/main/w/webmin/webmin_0.94.orig.tar.gz
Size/MD5 checksum: 4831737 114c7ca2557c17faebb627a3de7acb97
Architecture independent components:
http://security.debian.org/pool/updates/main/w/webmin/webmin-apache_0.94-7woody1_all.deb
Size/MD5 checksum: 223628 1cce74d57c8893994e9e751732e3d03e
http://security.debian.org/pool/updates/main/w/webmin/webmin-bind8_0.94-7woody1_all.deb
Size/MD5 checksum: 181942 e811fad93db9508eff56bf43e02af243
http://security.debian.org/pool/updates/main/w/webmin/webmin-burner_0.94-7woody1_all.deb
Size/MD5 checksum: 32474 61a7860de06b4c220bc5a073e0228c2f
http://security.debian.org/pool/updates/main/w/webmin/webmin-cluster-software_0.94-7woody1_all.deb
Size/MD5 checksum: 27498 fb58c07651016767072aa185582e1262
http://security.debian.org/pool/updates/main/w/webmin/webmin-cluster-useradmin_0.94-7woody1_all.deb
Size/MD5 checksum: 30588 db6836541741fcf9dfd4c11e0c8c5c86
http://security.debian.org/pool/updates/main/w/webmin/webmin-core_0.94-7woody1_all.deb
Size/MD5 checksum: 1250010 c41276d145a5bea9e3a684a07892101c
http://security.debian.org/pool/updates/main/w/webmin/webmin-cpan_0.94-7woody1_all.deb
Size/MD5 checksum: 26400 0627034bae9b0128afe4c12680a9825c
http://security.debian.org/pool/updates/main/w/webmin/webmin-dhcpd_0.94-7woody1_all.deb
Size/MD5 checksum: 96410 19dcc297592c48c4c35bbc59e6e3559b
http://security.debian.org/pool/updates/main/w/webmin/webmin-exports_0.94-7woody1_all.deb
Size/MD5 checksum: 54614 dc151a7489baa9b03797412a4157b860
http://security.debian.org/pool/updates/main/w/webmin/webmin-fetchmail_0.94-7woody1_all.deb
Size/MD5 checksum: 27162 90953255ab14012fd81134938f417953
http://security.debian.org/pool/updates/main/w/webmin/webmin-heartbeat_0.94-7woody1_all.deb
Size/MD5 checksum: 21574 b5beb6b9e40c95da6e34797d7a29250e
http://security.debian.org/pool/updates/main/w/webmin/webmin-inetd_0.94-7woody1_all.deb
Size/MD5 checksum: 47848 1d4fcb713365e15e08c95f26adb19bb9
http://security.debian.org/pool/updates/main/w/webmin/webmin-jabber_0.94-7woody1_all.deb
Size/MD5 checksum: 31260 b5de1505b1e0fc0f1764fa0e836353db
http://security.debian.org/pool/updates/main/w/webmin/webmin-lpadmin_0.94-7woody1_all.deb
Size/MD5 checksum: 103586 d9175bbe682efe11d4209a3d90cdab1b
http://security.debian.org/pool/updates/main/w/webmin/webmin-mon_0.94-7woody1_all.deb
Size/MD5 checksum: 62302 ec02f075f96ab2bcf0fcabb890f4bf59
http://security.debian.org/pool/updates/main/w/webmin/webmin-mysql_0.94-7woody1_all.deb
Size/MD5 checksum: 119004 6afc4480515fb840dc7a7732a7d70b23
http://security.debian.org/pool/updates/main/w/webmin/webmin-nis_0.94-7woody1_all.deb
Size/MD5 checksum: 62448 fd5fc92c3c0d9259feba4a4869c518f6
http://security.debian.org/pool/updates/main/w/webmin/webmin-postfix_0.94-7woody1_all.deb
Size/MD5 checksum: 196532 eff08cb3653eae193616237978423763
http://security.debian.org/pool/updates/main/w/webmin/webmin-postgresql_0.94-7woody1_all.deb
Size/MD5 checksum: 77372 11b4fe1d73410f1e43530508c128c604
http://security.debian.org/pool/updates/main/w/webmin/webmin-ppp_0.94-7woody1_all.deb
Size/MD5 checksum: 20636 6f115702e3fa9b3d622b92d371e56b2c
http://security.debian.org/pool/updates/main/w/webmin/webmin-qmailadmin_0.94-7woody1_all.deb
Size/MD5 checksum: 37828 f28eefac5b5da0c7d3752aaf7440ff9c
http://security.debian.org/pool/updates/main/w/webmin/webmin-quota_0.94-7woody1_all.deb
Size/MD5 checksum: 87808 0b0f39e10987f90879f6367393940ef7
http://security.debian.org/pool/updates/main/w/webmin/webmin-raid_0.94-7woody1_all.deb
Size/MD5 checksum: 35618 5f3fb91dcb493ae563720a6e2d7a1626
http://security.debian.org/pool/updates/main/w/webmin/webmin-samba_0.94-7woody1_all.deb
Size/MD5 checksum: 134034 4b86de5f297b3662a3efd389510bd248
http://security.debian.org/pool/updates/main/w/webmin/webmin-sendmail_0.94-7woody1_all.deb
Size/MD5 checksum: 235074 ffb041417449df36ae7085c9344eb332
http://security.debian.org/pool/updates/main/w/webmin/webmin-software_0.94-7woody1_all.deb
Size/MD5 checksum: 89148 64d9b960a740a5be9fab9eb79fb188fd
http://security.debian.org/pool/updates/main/w/webmin/webmin-squid_0.94-7woody1_all.deb
Size/MD5 checksum: 221836 7035074b9a76335e6103a30485e3134c
http://security.debian.org/pool/updates/main/w/webmin/webmin-sshd_0.94-7woody1_all.deb
Size/MD5 checksum: 44078 4733ff267ebfc94ba0e6e6481873249d
http://security.debian.org/pool/updates/main/w/webmin/webmin-ssl_0.94-7woody1_all.deb
Size/MD5 checksum: 8320 42484bc80e887649fb701adea4cf0c73
http://security.debian.org/pool/updates/main/w/webmin/webmin-status_0.94-7woody1_all.deb
Size/MD5 checksum: 42774 8f62321c6243e85c61790b290efcc59b
http://security.debian.org/pool/updates/main/w/webmin/webmin-stunnel_0.94-7woody1_all.deb
Size/MD5 checksum: 26600 ce3679dc5bd620e803c881e15410bc09
http://security.debian.org/pool/updates/main/w/webmin/webmin-wuftpd_0.94-7woody1_all.deb
Size/MD5 checksum: 110828 9fd579f5d5980ddae4768a0459835a99
http://security.debian.org/pool/updates/main/w/webmin/webmin-xinetd_0.94-7woody1_all.deb
Size/MD5 checksum: 31774 98f1456602b807a1a84bfcf6075ce9df
http://security.debian.org/pool/updates/main/w/webmin/webmin_0.94-7woody1_all.deb
Size/MD5 checksum: 509038 75fb02b81e729cc0361ebf11d59ef59c
Intel IA-32 architecture:
http://security.debian.org/pool/updates/main/w/webmin/webmin-grub_0.94-7woody1_i386.deb
Size/MD5 checksum: 29336 ab60b8d46f362e853f0b0417beb44655
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Vendor URL: www.webmin.com/ (Links to External Site)
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Cause:
Authentication error, Input validation error
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Underlying OS:
Linux (Debian)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Thu, 12 Jun 2003 19:53:38 -0400
Subject: [SECURITY] [DSA-319-1] New webmin packages fix remote session ID spoofing
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
- --------------------------------------------------------------------------
Debian Security Advisory DSA 319-1 security@debian.org
http://www.debian.org/security/ Matt Zimmerman
June 12th, 2003 http://www.debian.org/security/faq
- --------------------------------------------------------------------------
Package : webmin
Vulnerability : session ID spoofing
Problem-Type : remote
Debian-specific: no
CVE Id : CAN-2003-0101
miniserv.pl in the webmin package does not properly handle
metacharacters, such as line feeds and carriage returns, in
Base64-encoded strings used in Basic authentication. This
vulnerability allows remote attackers to spoof a session ID, and
thereby gain root privileges.
For the stable distribution (woody) this problem has been fixed in
version 0.94-7woody1.
The old stable distribution (potato) does not contain a webmin package.
For the unstable distribution (sid) this problem is fixed in version
1.070-1.
We recommend that you update your webmin package.
Upgrade Instructions
- --------------------
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
If you are using the apt-get package manager, use the line for
sources.list as given below:
apt-get update
will update the internal database
apt-get upgrade
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 3.0 alias woody
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Source archives:
http://security.debian.org/pool/updates/main/w/webmin/webmin_0.94-7woody1.dsc
Size/MD5 checksum: 1126 68e911f1b0ca669eb8ba250e3c8e9188
http://security.debian.org/pool/updates/main/w/webmin/webmin_0.94-7woody1.diff.gz
Size/MD5 checksum: 62990 1b96c1d52b1e3315861df4b9b788840e
http://security.debian.org/pool/updates/main/w/webmin/webmin_0.94.orig.tar.gz
Size/MD5 checksum: 4831737 114c7ca2557c17faebb627a3de7acb97
Architecture independent components:
http://security.debian.org/pool/updates/main/w/webmin/webmin-apache_0.94-7woody1_all.deb
Size/MD5 checksum: 223628 1cce74d57c8893994e9e751732e3d03e
http://security.debian.org/pool/updates/main/w/webmin/webmin-bind8_0.94-7woody1_all.deb
Size/MD5 checksum: 181942 e811fad93db9508eff56bf43e02af243
http://security.debian.org/pool/updates/main/w/webmin/webmin-burner_0.94-7woody1_all.deb
Size/MD5 checksum: 32474 61a7860de06b4c220bc5a073e0228c2f
http://security.debian.org/pool/updates/main/w/webmin/webmin-cluster-software_0.94-7woody1_all.deb
Size/MD5 checksum: 27498 fb58c07651016767072aa185582e1262
http://security.debian.org/pool/updates/main/w/webmin/webmin-cluster-useradmin_0.94-7woody1_all.deb
Size/MD5 checksum: 30588 db6836541741fcf9dfd4c11e0c8c5c86
http://security.debian.org/pool/updates/main/w/webmin/webmin-core_0.94-7woody1_all.deb
Size/MD5 checksum: 1250010 c41276d145a5bea9e3a684a07892101c
http://security.debian.org/pool/updates/main/w/webmin/webmin-cpan_0.94-7woody1_all.deb
Size/MD5 checksum: 26400 0627034bae9b0128afe4c12680a9825c
http://security.debian.org/pool/updates/main/w/webmin/webmin-dhcpd_0.94-7woody1_all.deb
Size/MD5 checksum: 96410 19dcc297592c48c4c35bbc59e6e3559b
http://security.debian.org/pool/updates/main/w/webmin/webmin-exports_0.94-7woody1_all.deb
Size/MD5 checksum: 54614 dc151a7489baa9b03797412a4157b860
http://security.debian.org/pool/updates/main/w/webmin/webmin-fetchmail_0.94-7woody1_all.deb
Size/MD5 checksum: 27162 90953255ab14012fd81134938f417953
http://security.debian.org/pool/updates/main/w/webmin/webmin-heartbeat_0.94-7woody1_all.deb
Size/MD5 checksum: 21574 b5beb6b9e40c95da6e34797d7a29250e
http://security.debian.org/pool/updates/main/w/webmin/webmin-inetd_0.94-7woody1_all.deb
Size/MD5 checksum: 47848 1d4fcb713365e15e08c95f26adb19bb9
http://security.debian.org/pool/updates/main/w/webmin/webmin-jabber_0.94-7woody1_all.deb
Size/MD5 checksum: 31260 b5de1505b1e0fc0f1764fa0e836353db
http://security.debian.org/pool/updates/main/w/webmin/webmin-lpadmin_0.94-7woody1_all.deb
Size/MD5 checksum: 103586 d9175bbe682efe11d4209a3d90cdab1b
http://security.debian.org/pool/updates/main/w/webmin/webmin-mon_0.94-7woody1_all.deb
Size/MD5 checksum: 62302 ec02f075f96ab2bcf0fcabb890f4bf59
http://security.debian.org/pool/updates/main/w/webmin/webmin-mysql_0.94-7woody1_all.deb
Size/MD5 checksum: 119004 6afc4480515fb840dc7a7732a7d70b23
http://security.debian.org/pool/updates/main/w/webmin/webmin-nis_0.94-7woody1_all.deb
Size/MD5 checksum: 62448 fd5fc92c3c0d9259feba4a4869c518f6
http://security.debian.org/pool/updates/main/w/webmin/webmin-postfix_0.94-7woody1_all.deb
Size/MD5 checksum: 196532 eff08cb3653eae193616237978423763
http://security.debian.org/pool/updates/main/w/webmin/webmin-postgresql_0.94-7woody1_all.deb
Size/MD5 checksum: 77372 11b4fe1d73410f1e43530508c128c604
http://security.debian.org/pool/updates/main/w/webmin/webmin-ppp_0.94-7woody1_all.deb
Size/MD5 checksum: 20636 6f115702e3fa9b3d622b92d371e56b2c
http://security.debian.org/pool/updates/main/w/webmin/webmin-qmailadmin_0.94-7woody1_all.deb
Size/MD5 checksum: 37828 f28eefac5b5da0c7d3752aaf7440ff9c
http://security.debian.org/pool/updates/main/w/webmin/webmin-quota_0.94-7woody1_all.deb
Size/MD5 checksum: 87808 0b0f39e10987f90879f6367393940ef7
http://security.debian.org/pool/updates/main/w/webmin/webmin-raid_0.94-7woody1_all.deb
Size/MD5 checksum: 35618 5f3fb91dcb493ae563720a6e2d7a1626
http://security.debian.org/pool/updates/main/w/webmin/webmin-samba_0.94-7woody1_all.deb
Size/MD5 checksum: 134034 4b86de5f297b3662a3efd389510bd248
http://security.debian.org/pool/updates/main/w/webmin/webmin-sendmail_0.94-7woody1_all.deb
Size/MD5 checksum: 235074 ffb041417449df36ae7085c9344eb332
http://security.debian.org/pool/updates/main/w/webmin/webmin-software_0.94-7woody1_all.deb
Size/MD5 checksum: 89148 64d9b960a740a5be9fab9eb79fb188fd
http://security.debian.org/pool/updates/main/w/webmin/webmin-squid_0.94-7woody1_all.deb
Size/MD5 checksum: 221836 7035074b9a76335e6103a30485e3134c
http://security.debian.org/pool/updates/main/w/webmin/webmin-sshd_0.94-7woody1_all.deb
Size/MD5 checksum: 44078 4733ff267ebfc94ba0e6e6481873249d
http://security.debian.org/pool/updates/main/w/webmin/webmin-ssl_0.94-7woody1_all.deb
Size/MD5 checksum: 8320 42484bc80e887649fb701adea4cf0c73
http://security.debian.org/pool/updates/main/w/webmin/webmin-status_0.94-7woody1_all.deb
Size/MD5 checksum: 42774 8f62321c6243e85c61790b290efcc59b
http://security.debian.org/pool/updates/main/w/webmin/webmin-stunnel_0.94-7woody1_all.deb
Size/MD5 checksum: 26600 ce3679dc5bd620e803c881e15410bc09
http://security.debian.org/pool/updates/main/w/webmin/webmin-wuftpd_0.94-7woody1_all.deb
Size/MD5 checksum: 110828 9fd579f5d5980ddae4768a0459835a99
http://security.debian.org/pool/updates/main/w/webmin/webmin-xinetd_0.94-7woody1_all.deb
Size/MD5 checksum: 31774 98f1456602b807a1a84bfcf6075ce9df
http://security.debian.org/pool/updates/main/w/webmin/webmin_0.94-7woody1_all.deb
Size/MD5 checksum: 509038 75fb02b81e729cc0361ebf11d59ef59c
Intel IA-32 architecture:
http://security.debian.org/pool/updates/main/w/webmin/webmin-grub_0.94-7woody1_i386.deb
Size/MD5 checksum: 29336 ab60b8d46f362e853f0b0417beb44655
These files will probably be moved into the stable distribution on its
next revision.
- ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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