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Category:   Application (Multimedia)  >   Icecast Vendors:   Icecast.org
(Debian Issues Fix) icecast Input Validation Error in HTTP UserAgent Field Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1011047
SecurityTracker URL:  http://securitytracker.com/id/1011047
CVE Reference:   CVE-2004-0781   (Links to External Site)
Date:  Aug 25 2004
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.3.12 and prior versions (it is not clear if version 2.0.x is affected or not)
Description:   An input validation vulnerability was reported in icecast in the internal web server. A remote user can conduct cross-site scripting attacks.

Debian reported that Markus Worle discovered that the status display (list.cgi) does not properly filter HTML code from the user-supplied HTTP UserAgent header. A remote user can submit a specially crafted request so that when a target user views the status display, arbitrary scripting code will be executed by the target user's browser. The code will originate from the site running the icecast software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

The flaw resides in 'src/http.c'.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the icecast software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   Debian has released a fix for the stable distribution (woody) in version 1.3.11-4.2 and for the unstable distribution (sid) in version 1.3.12-8.

Debian GNU/Linux 3.0 alias woody:

Source archives:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2.dsc
Size/MD5 checksum: 537 5fe3d9dc7caacf350798d51b4f8c0947
http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2.tar.gz
Size/MD5 checksum: 273480 694b512b40ff380e5c52d9907129daa3

Alpha architecture:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_alpha.deb
Size/MD5 checksum: 202412 2159ed7ae29e0a4549cea30a93615038

ARM architecture:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_arm.deb
Size/MD5 checksum: 174998 710dd20bacdd356508952c9a47bafd82

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_i386.deb
Size/MD5 checksum: 163136 4a5455a5b293182c9df66781fcc0a94b

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_ia64.deb
Size/MD5 checksum: 235326 e17cd9085f17d3f33bda1e20f2354eb5

HP Precision architecture:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_hppa.deb
Size/MD5 checksum: 194688 36998f1b08dabcdf7960e9785115f339

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_m68k.deb
Size/MD5 checksum: 155608 ae4c5176f4224c74dfc62ade3a6e537f

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_mips.deb
Size/MD5 checksum: 188852 589344681612a5e12144fe0869f3911a

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_mipsel.deb
Size/MD5 checksum: 189140 24beeff7e32e829a43a5f5c02a4495ad

PowerPC architecture:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_powerpc.deb
Size/MD5 checksum: 173914 96f791e067a9a44f4671f20b1ee39788

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_s390.deb
Size/MD5 checksum: 169226 5c30d138bec3be53348f26182a2dc85f

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_sparc.deb
Size/MD5 checksum: 175766 13ebab39557bf99be7ec058487b679cd

Vendor URL:  www.icecast.org/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Debian)
Underlying OS Comments:  3.0

Message History:   This archive entry is a follow-up to the message listed below.
Aug 24 2004 icecast Input Validation Error in HTTP UserAgent Field Permits Cross-Site Scripting Attacks



 Source Message Contents

Subject:  [SECURITY] [DSA 541-1] New icecast-server packages fix cross site scripting


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA 541-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
August 24th, 2004                       http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : icecast-server
Vulnerability  : missing escape
Problem-Type   : remote
Debian-specific: no
CVE ID         : CAN-2004-0781

status-display (list.cgi) of the icecast internal webserver, an MPEG
layer III streaming server.  The UserAgent variable is not properly
html_escaped so that an attacker could cause the client to execute
arbitrary Java script commands.


For the stable distribution (woody) this problem has been fixed in
version 1.3.11-4.2.

For the unstable distribution (sid) this problem has been fixed in
version 1.3.12-8.

We recommend that you upgrade your icecast-server 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
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2.dsc
      Size/MD5 checksum:      537 5fe3d9dc7caacf350798d51b4f8c0947
    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2.tar.gz
      Size/MD5 checksum:   273480 694b512b40ff380e5c52d9907129daa3

  Alpha architecture:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_alpha.deb
      Size/MD5 checksum:   202412 2159ed7ae29e0a4549cea30a93615038

  ARM architecture:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_arm.deb
      Size/MD5 checksum:   174998 710dd20bacdd356508952c9a47bafd82

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_i386.deb
      Size/MD5 checksum:   163136 4a5455a5b293182c9df66781fcc0a94b

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_ia64.deb
      Size/MD5 checksum:   235326 e17cd9085f17d3f33bda1e20f2354eb5

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_hppa.deb
      Size/MD5 checksum:   194688 36998f1b08dabcdf7960e9785115f339

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_m68k.deb
      Size/MD5 checksum:   155608 ae4c5176f4224c74dfc62ade3a6e537f

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_mips.deb
      Size/MD5 checksum:   188852 589344681612a5e12144fe0869f3911a

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_mipsel.deb
      Size/MD5 checksum:   189140 24beeff7e32e829a43a5f5c02a4495ad

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_powerpc.deb
      Size/MD5 checksum:   173914 96f791e067a9a44f4671f20b1ee39788

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_s390.deb
      Size/MD5 checksum:   169226 5c30d138bec3be53348f26182a2dc85f

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/i/icecast-server/icecast-server_1.3.11-4.2_sparc.deb
      Size/MD5 checksum:   175766 13ebab39557bf99be7ec058487b679cd


  These files will probably be moved into the stable distribution on
  its next update.

- ---------------------------------------------------------------------------------
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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Version: GnuPG v1.2.5 (GNU/Linux)

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W8Oc6xKFMgr0LQFJntNUJNE=
=/uhI
-----END PGP SIGNATURE-----


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