Samba afsacl.so VFS plugin format string
| samba-afsacl-format-string (32304) |  High Risk |
Description:
Samba could allow a remote authenticated attacker with write file share access to execute arbitrary commands on the system, caused by a format string vulnerability in the afsacl.so VFS plugin. An attacker could exploit this vulnerability by creating a specially-crafted filename containing malicious format string specifiers to execute arbitrary commands or cause the application to crash, if the attacker could persuade the victim to open the malicious file.
Note: Successful exploitation requires sharing between AFS file systems and CIFS clients.
*CVSS:
| Base Score: | 4.8 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Required |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 3.5 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of Samba (3.0.24 or later), available from the Samba Web site. See References.
For Turbolinux (Samba):
Refer to TLSA-2007-18 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux:
Refer to USN-419-1 for patch, upgrade, or workaround information. See References.
For Debian GNU/Linux:
Refer to DSA-1257-1 for patch, upgrade, or workaround information. See References.
For Gentoo Linux:
Refer to GLSA 200702-01 for patch, upgrade, or suggested workaround information. See Reference.
For Mandriva Linux (Samba):
Refer to MDKSA-2007:034 for patch, upgrade, or suggested workaround information. See References.
For SUSE Linux (samba):
Refer to SUSE-SA:2007:016 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Apply the appropriate update for your system. See References.
References:
- BugTraq Mailing List, Mon Feb 05 2007 - 07:26:06 CST : [SAMBA-SECURITY] CVE-2007-0454: Format string bug in afsacl.so VFS plugin.
- Samba Web site: Samba - opening windows to a wider world.
- BID-22403: Samba Server VFS Plugin AFSACL.SO Remote Format String Vulnerability
- CVE-2007-0454: Format string vulnerability in the afsacl.so VFS module in Samba 3.0.6 through 3.0.23d allows context-dependent attackers to execute arbitrary code via format string specifiers in a filename on an AFS file system, which is not properly handled during Windows ACL mapping.
- DSA-1257: samba -- several vulnerabilities
- GLSA-200702-01: Samba: Multiple vulnerabilities
- MDKSA-2007:034: Updated samba packages address multiple vulnerabilities
- OpenPKG-SA-2007.012: Samba
- SA24046: Samba Denial of Service and Format String Vulnerability
- SECTRACK ID: 1017588: Samba Format String Bug in `afsacl.so` VFS Plugin May Let Remote Users Execute Arbitrary Code
- SUSE-SA:2007:016: samba remote denial of service
Platforms Affected:
- Canonical Ubuntu 5.10
- Canonical Ubuntu 6.06 LTS
- Canonical Ubuntu 6.10
- Debian Debian Linux 3.1
- Gentoo Linux
- MandrakeSoft Mandrake Linux 2006 X86_64
- MandrakeSoft Mandrake Linux 2006
- MandrakeSoft Mandrake Linux 2007
- MandrakeSoft Mandrake Linux 2007 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0
- MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 4.0
- Novell Linux Desktop 9
- Novell Linux POS 9
- Novell Open Enterprise Server
- Novell Open Enterprise Server
- Novell OpenSUSE 10.2
- OpenPKG OpenPKG CURRENT
- OpenPKG OpenPKG Enterprise E1.0-SOLID
- Samba Samba 3.0.10
- Samba Samba 3.0.11
- Samba Samba 3.0.12
- Samba Samba 3.0.13
- Samba Samba 3.0.14a
- Samba Samba 3.0.20
- Samba Samba 3.0.20a
- Samba Samba 3.0.20b
- Samba Samba 3.0.21
- Samba Samba 3.0.21a
- Samba Samba 3.0.21b
- Samba Samba 3.0.21c
- Samba Samba 3.0.22
- Samba Samba 3.0.23
- Samba Samba 3.0.23a
- Samba Samba 3.0.23b
- Samba Samba 3.0.23c
- Samba Samba 3.0.23d
- Samba Samba 3.0.6
- Samba Samba 3.0.7
- Samba Samba 3.0.8
- Samba Samba 3.0.9
- SUSE SuSE Linux 10.0
- SUSE SuSE Linux 10.1
- SUSE SuSE Linux 9.3
- SuSE SuSE SLED 10
- SuSE SuSE SLES 10
- SuSE SuSE SLES 9
- Turbolinux Turbolinux 10 Server
- Turbolinux Turbolinux 10 Server x64 Ed
- Turbolinux Turbolinux FUJI
- Turbolinux Turbolinux Appliance Server 2.0
Reported:
Feb 05, 2007
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.