Solaris libauth Buffer Overflow vulnerabilities

BID:442

Info

Solaris libauth Buffer Overflow vulnerabilities

Bugtraq ID: 442
Class: Boundary Condition Error
CVE:
Remote: Yes
Local: Yes
Published: Aug 04 1998 12:00AM
Updated: Aug 04 1998 12:00AM
Credit: First released in RSI Advisory 0007 on August 4, 1998.
Vulnerable: Sun Solaris 2.5.1 _x86
Sun Solaris 2.5.1 _ppc
Sun Solaris 2.5.1
Sun Solaris 2.6_x86
Sun Solaris 2.6
Sun Solaris 2.5_x86
Sun Solaris 2.5
Sun Solaris 2.4
Sun Solaris 2.3
Sun Solaris 2.2
Not Vulnerable:

Discussion

Solaris libauth Buffer Overflow vulnerabilities

There are two buffer overflows present in the versions of libauth shipped with Solaris 2.2, 2.3, 2.4, 2.5, 2.5.1, and 2.6. They allow for a user to overflow the buffers that hold hostname and username in the function ia_open_session() and execute arbitrary code as root. The consequences of this are local or remote root compromise.

Potentially vulnerable programs ----------------------------------------------------

1. login

2. in.ftpd

3. in.uucpd

4. rpc.rexd

Exploit / POC

Solaris libauth Buffer Overflow vulnerabilities

Currently the SecurityFocus staff 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].

Solution / Fix

Solaris libauth Buffer Overflow vulnerabilities

Solution:
Patches are available to all Sun customers at http://sunsolve.sun.com


Sun Solaris 2.6
  • Sun 106569-01


Sun Solaris 2.6_x86
  • Sun 106570-01


Sun Solaris 2.5

Sun Solaris 2.3

Sun Solaris 2.5_x86
  • Sun 106568-01


Sun Solaris 2.4
  • Sun 101945-60
    sparc


Sun Solaris 2.5.1 _x86

Sun Solaris 2.5.1
  • Sun 106563-01

References

Solaris libauth Buffer Overflow vulnerabilities

References:

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