NetBSD FTPD glob.c buffer overflow

netbsd-ftpd-glob-bo (30670) The risk level is classified as HighHigh Risk

Description:

NetBSD FTPD and tnftpd are vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the glob.c file. By creating a malicious folder containing globbing characters and sending an overly long pathname, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system with root privileges.

*CVSS:

Base Score: 8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 6.3
  Exploitability: Functional
  Remediation Level: Official-Fix
  Report Confidence: Uncorroborated

Consequences:

Gain Access

Remedy:

Refer to NetBSD Security Advisory 2006-027 for patch, upgrade, or suggested workaround information. See References.

For Mac OS X:
Refer to Apple Security Update 2007-004 for upgrade information. See References.

References:

  • Apple Security Update 2007-004: Security Update 2007-004.
  • freshmeat.net: tnftpd.
  • Full-Disclosure Mailing List, Thu Nov 30 2006 - 18:25:14 CST: NetBSD FTPD and ports ***REMOTE ROOOOOT HOLE***.
  • NetBSD-SA2006-027: libc glob(3) buffer overflow.
  • BID-21377: NetBSD Ftpd and Tnftpd Port Remote Buffer Overflow Vulnerability
  • CVE-2006-6652: Buffer overflow in the glob implementation (glob.c) in libc in NetBSD-current before 20050914, NetBSD 2.* and 3.* before 20061203, and Apple Mac OS X before 2007-004, as used by the FTP daemon and tnftpd, allows remote authenticated users to execute arbitrary code via a long pathname that results from path expansion.
  • OSVDB ID: 31781: Mac OS X and NetBSD ftpd Globbing Overflow
  • SA23178: Mac OS X ftpd Buffer Overflow Vulnerability
  • SA24966: Mac OS X Security Update Fixes Multiple Vulnerabilities
  • SECTRACK ID: 1017386: NetBSD libc glob(3) Buffer Overflow May Let Local Users Gain Elevated Privileges or Remote Users Execute Arbitrary Code in Certain Cases
  • VUPEN/ADV-2007-1470: Apple Mac OS X Multiple Remote Code Execution and Denial of Service Vulnerabilities

Platforms Affected:

  • Apple Mac OS X 10.0
  • Apple Mac OS X 10.0.1
  • Apple Mac OS X 10.0.2
  • Apple Mac OS X 10.0.3
  • Apple Mac OS X 10.0.4
  • Apple Mac OS X 10.1
  • Apple Mac OS X 10.1.1
  • Apple Mac OS X 10.1.2
  • Apple Mac OS X 10.1.3
  • Apple Mac OS X 10.1.4
  • Apple Mac OS X 10.1.5
  • Apple Mac OS X 10.2
  • Apple Mac OS X 10.2.1
  • Apple Mac OS X 10.2.2
  • Apple Mac OS X 10.2.3
  • Apple Mac OS X 10.2.4
  • Apple Mac OS X 10.2.5
  • Apple Mac OS X 10.2.6
  • Apple Mac OS X 10.2.7
  • Apple Mac OS X 10.2.8
  • Apple Mac OS X 10.3
  • Apple Mac OS X 10.3.1
  • Apple Mac OS X 10.3.2
  • Apple Mac OS X 10.3.3
  • Apple Mac OS X 10.3.4
  • Apple Mac OS X 10.3.5
  • Apple Mac OS X 10.3.6
  • Apple Mac OS X 10.3.7
  • Apple Mac OS X 10.3.8
  • Apple Mac OS X 10.3.9
  • Apple Mac OS X 10.4
  • Apple Mac OS X 10.4.1
  • Apple Mac OS X 10.4.10
  • Apple Mac OS X 10.4.2
  • Apple Mac OS X 10.4.3
  • Apple Mac OS X 10.4.4
  • Apple Mac OS X 10.4.5
  • Apple Mac OS X 10.4.6
  • Apple Mac OS X 10.4.7
  • Apple Mac OS X 10.4.8
  • Apple Mac OS X 10.4.9
  • NetBSD NetBSD 2.0
  • NetBSD NetBSD 2.1
  • NetBSD NetBSD 3.0
  • NetBSD NetBSD 3.1

Reported:

Nov 30, 2006

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