TNFTPD Multiple Signal Handler Remote Superuser Compromise Vulnerabilities

BID:10967

Info

TNFTPD Multiple Signal Handler Remote Superuser Compromise Vulnerabilities

Bugtraq ID: 10967
Class: Race Condition Error
CVE: CVE-2004-0794
Remote: Yes
Local: No
Published: Aug 17 2004 12:00AM
Updated: Jul 12 2009 06:16AM
Credit: Przemyslaw Frasunek disclosed these vulnerabilities.
Vulnerable: Sun Java Desktop System (JDS) 2.0
Sun Java Desktop System (JDS) 2003
NetBSD NetBSD 2.0
NetBSD NetBSD 1.6.2
NetBSD NetBSD 1.6.1
NetBSD NetBSD 1.6 beta
NetBSD NetBSD 1.6
NetBSD NetBSD 1.5.3
NetBSD NetBSD 1.5.2
NetBSD NetBSD 1.5.1
NetBSD NetBSD 1.5 x86
NetBSD NetBSD 1.5 sh3
NetBSD NetBSD 1.5
NetBSD NetBSD 1.4.3
NetBSD NetBSD 1.4.2 x86
NetBSD NetBSD 1.4.2 SPARC
NetBSD NetBSD 1.4.2 arm32
NetBSD NetBSD 1.4.2 Alpha
NetBSD NetBSD 1.4.2
NetBSD NetBSD 1.4.1 x86
NetBSD NetBSD 1.4.1 SPARC
NetBSD NetBSD 1.4.1 sh3
NetBSD NetBSD 1.4.1 arm32
NetBSD NetBSD 1.4.1 Alpha
NetBSD NetBSD 1.4.1
NetBSD NetBSD 1.4 x86
NetBSD NetBSD 1.4 SPARC
NetBSD NetBSD 1.4 arm32
NetBSD NetBSD 1.4 Alpha
NetBSD NetBSD 1.4
NetBSD NetBSD 1.3.3
NetBSD NetBSD 1.3.2
NetBSD NetBSD 1.3.1
NetBSD NetBSD 1.3
NetBSD NetBSD Current
Luke Mewburn TNFTPD 20031217
Luke Mewburn lukemftp 1.5
+ S.u.S.E. Firewall Adminhost VPN
+ S.u.S.E. Linux Admin-CD for Firewall
+ S.u.S.E. Linux Connectivity Server
+ S.u.S.E. Linux Database Server 0
 + S.u.S.E. Linux Enterprise Server for S/390
+ S.u.S.E. Linux Live-CD for Firewall
+ S.u.S.E. SuSE eMail Server III
+ SuSE Linux 8.0
+ SuSE Linux 7.3
+ SuSE Linux 7.2
+ SuSE Linux 7.1
+ SuSE Linux 7.0
+ SuSE Linux 6.4
+ SuSE SUSE Linux Enterprise Server 7
 Luke Mewburn lukemftp 1.1
Heimdal Heimdal 0.6.2
- Ubuntu Ubuntu Linux 4.1 ppc
 - Ubuntu Ubuntu Linux 4.1 ia64
 - Ubuntu Ubuntu Linux 4.1 ia32
 Heimdal Heimdal 0.6.1
Heimdal Heimdal 0.6
Heimdal Heimdal 0.5.3
Heimdal Heimdal 0.5.2
Heimdal Heimdal 0.5.1
Heimdal Heimdal 0.5 .0
Heimdal Heimdal 0.4 e
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
Heimdal Heimdal 0.4 d
Heimdal Heimdal 0.4 c
Heimdal Heimdal 0.4 b
Heimdal Heimdal 0.4 a
Heimdal Heimdal 0.3 f
Gentoo Linux 1.4
Apple Mac OS X Server 10.3.5
Apple Mac OS X Server 10.3.4
Apple Mac OS X Server 10.2.8
Apple Mac OS X 10.3.5
Apple Mac OS X 10.3.4
Apple Mac OS X 10.2.8
Not Vulnerable: Luke Mewburn TNFTPD 20040810
Heimdal Heimdal 0.6.3
+ Gentoo Linux
+ Gentoo Linux
- Ubuntu Ubuntu Linux 5.10 powerpc
 - Ubuntu Ubuntu Linux 5.10 i386
 - Ubuntu Ubuntu Linux 5.10 amd64
 - Ubuntu Ubuntu Linux 5.0 4 powerpc
 - Ubuntu Ubuntu Linux 5.0 4 i386
 - Ubuntu Ubuntu Linux 5.0 4 amd64

Discussion

TNFTPD Multiple Signal Handler Remote Superuser Compromise Vulnerabilities

It is reported that TNFTPD is susceptible to multiple remote superuser compromise vulnerabilities. These vulnerabilities are all derived from improper signal handler operations. Signals can be delivered to the vulnerable FTPD by a remote attacker via out-of-band TCP data (OOB).

These vulnerabilities may allow an anonymous remote attacker to gain superuser privileges on computer hosting the affected software.

TNFTPD versions prior to 10 Aug 2004 are reported vulnerable. All versions of Lukemftpd are reported vulnerable. NetBSD version 1.6.2 and prior, NetBSD-2.0 prior to 15 Aug 2004, as well as NetBSD-current prior to 10 Aug 2004 are reported vulnerable as well.

Exploit / POC

TNFTPD Multiple Signal Handler Remote Superuser Compromise Vulnerabilities

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

TNFTPD Multiple Signal Handler Remote Superuser Compromise Vulnerabilities

Solution:
The vendor has released patches resolving these issues.

NetBSD has released advisory 2004-009 addressing this issue. Please see the referenced advisory for further information. Fixes are available from CVS for the NetBSD-current and NetBSD-2.0 branches.

Apple has released an advisory (APPLE-SA-0024-09-07) along with fixes to address this, and many other issues. Please see the referenced advisory for further information.

Heimdal has released an advisory (2004-09-13) along with version 0.6.3 to address this issue. Please see the referenced advisory for further information.

Gentoo Linux has released an advisory (GLSA 200409-19) to address this issue. Please see the referenced advisory for further information. Users of affected packages are urged to execute the following with superuser privileges:
emerge sync
emerge -pv ">=app-crypt/heimdal-0.6.3"
emerge ">=app-crypt/heimdal-0.6.3"

Debian Linux has released an advisory (DSA 551-1) along with fixes dealing with this issue. Please the referenced advisory for more information.

Sun has released an advisory (Sun Alert ID: 57655) with fixes to address these issues in Sun Java Desktop System (JDS) 2003 and Release 2 for the Linux platform. Please see the advisory in Web references for more information. Users may carry out the following actions from the launch bar to download the patch:

Launch >> Applications >> System Tools >> Online Update


Luke Mewburn TNFTPD 20031217

Sun Java Desktop System (JDS) 2003
  • Sun patch-9369


Heimdal Heimdal 0.3 f

Heimdal Heimdal 0.4 b

Heimdal Heimdal 0.4 d

Heimdal Heimdal 0.4 c

Heimdal Heimdal 0.4 a

Heimdal Heimdal 0.4 e

Heimdal Heimdal 0.5 .0

Heimdal Heimdal 0.5.1

Heimdal Heimdal 0.5.2

Heimdal Heimdal 0.5.3

Heimdal Heimdal 0.6

Heimdal Heimdal 0.6.1

Heimdal Heimdal 0.6.2

Luke Mewburn lukemftp 1.1

Luke Mewburn lukemftp 1.5

Apple Mac OS X 10.2.8

Apple Mac OS X Server 10.2.8

Apple Mac OS X 10.3.4

Apple Mac OS X Server 10.3.4

Apple Mac OS X Server 10.3.5

Apple Mac OS X 10.3.5

Sun Java Desktop System (JDS) 2.0
  • Sun patch-9369

References

TNFTPD Multiple Signal Handler Remote Superuser Compromise Vulnerabilities

References:

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