what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

secunia-smbraw.txt

secunia-smbraw.txt
Posted May 29, 2008
Authored by Alin Rad Pop | Site secunia.com

Secunia Research has discovered a vulnerability in Samba, which can be exploited by malicious people to compromise a vulnerable system. The vulnerability is caused due to a boundary error within the "receive_smb_raw()" function in lib/util_sock.c when parsing SMB packets. This can be exploited to cause a heap-based buffer overflow via an overly large SMB packet received in a client context. Successful exploitation allows execution of arbitrary code by tricking a user into connecting to a malicious server (e.g. by clicking an "smb://" link) or by sending specially crafted packets to an "nmbd" server configured as a local or domain master browser. Samba versions 3.0.28a and 3.0.29 are affected.

tags | advisory, overflow, arbitrary, local
advisories | CVE-2008-1105
SHA-256 | ace1e3490d62e1305a8527f476f4dc946ef19f53a86ef8ec100f95d0c1a120a2

secunia-smbraw.txt

Change Mirror Download
====================================================================== 

Secunia Research 28/05/2008

- Samba "receive_smb_raw()" Buffer Overflow Vulnerability -

======================================================================
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

======================================================================
1) Affected Software

* Samba 3.0.28a and 3.0.29.

NOTE: Prior versions may also be affected.

======================================================================
2) Severity

Rating: Highly critical
Impact: System access
Where: From remote

======================================================================
3) Vendor's Description of Software

"Samba is an Open Source/Free Software suite that has, since 1992,
provided file and print services to all manner of SMB/CIFS clients,
including the numerous versions of Microsoft Windows operating systems.
Samba is freely available under the GNU General Public License."

Product Link:
http://www.samba.org/

======================================================================
4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Samba, which can be
exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to a boundary error within the
"receive_smb_raw()" function in lib/util_sock.c when parsing SMB
packets. This can be exploited to cause a heap-based buffer overflow
via an overly large SMB packet received in a client context.

Successful exploitation allows execution of arbitrary code by tricking
a user into connecting to a malicious server (e.g. by clicking an
"smb://" link) or by sending specially crafted packets to an "nmbd"
server configured as a local or domain master browser.

======================================================================
5) Solution

Update to upcoming version 3.0.30 or apply patches.

======================================================================
6) Time Table

15/05/2008 - Vendor notified.
15/05/2008 - vendor-sec notified.
16/05/2008 - Vendor response.
28/05/2008 - Public disclosure.

======================================================================
7) Credits

Discovered by Alin Rad Pop, Secunia Research.

======================================================================
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2008-1105 for the vulnerability.

======================================================================
9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://corporate.secunia.com/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private
individuals, who are interested in or concerned about IT-security.

http://secunia.com/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the
security and reliability of software in general:

http://corporate.secunia.com/secunia_research/33/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/secunia_vacancies/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/

======================================================================
10) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2008-20/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================

Login or Register to add favorites

File Archive:

March 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    0 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    0 Files
  • 5
    Mar 5th
    0 Files
  • 6
    Mar 6th
    0 Files
  • 7
    Mar 7th
    0 Files
  • 8
    Mar 8th
    0 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    0 Files
  • 12
    Mar 12th
    0 Files
  • 13
    Mar 13th
    0 Files
  • 14
    Mar 14th
    0 Files
  • 15
    Mar 15th
    0 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    0 Files
  • 19
    Mar 19th
    0 Files
  • 20
    Mar 20th
    0 Files
  • 21
    Mar 21st
    0 Files
  • 22
    Mar 22nd
    0 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    0 Files
  • 26
    Mar 26th
    0 Files
  • 27
    Mar 27th
    0 Files
  • 28
    Mar 28th
    0 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close