Vulnerability Name:

CVE-2006-5778 (CCN-30176)

Assigned:2006-08-24
Published:2006-08-24
Updated:2008-09-05
Summary:ftpd in linux-ftpd 0.17, and possibly other versions, performs a chdir before setting the UID, which allows local users to bypass intended access restrictions by redirecting their home directory to a restricted directory.
CVSS v3 Severity:4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
3.4 Low (Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)
1.6 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-Other
Vulnerability Consequences:Bypass Security
References:Source: CCN
Type: Full-Disclosure Mailing List, Thu Aug 24 2006 - 20:07:17 CDT
ftpd chdir() while root

Source: CCN
Type: Debian Bug report logs - #384454
ftpd: Does not handle symlink? NFS? home directory

Source: CONFIRM
Type: UNKNOWN
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=384454

Source: MITRE
Type: CNA
CVE-2006-5778

Source: FULLDISC
Type: UNKNOWN
20060825 ftpd chdir() while root

Source: SECUNIA
Type: UNKNOWN
22997

Source: GENTOO
Type: UNKNOWN
GLSA-200611-05

Source: DEBIAN
Type: UNKNOWN
DSA-1217

Source: DEBIAN
Type: DSA-1217
linux-ftpd -- programming error

Source: CCN
Type: Gentoo-Portage Web site
net-ftp/ftpd - The netkit FTP server with optional SSL support

Source: CCN
Type: GLSA-200611-05
Netkit FTP Server: Privilege escalation

Source: CCN
Type: OSVDB ID: 30339
Linux NetKit FTP Server (linux-ftpd) NFS Home Directory Symlink Privilege Escalation

Source: CCN
Type: OSVDB ID: 30340
Linux NetKit FTP Server (linux-ftpd) ID Calls Return Unspecified Privilege Escalation

Source: BID
Type: UNKNOWN
21000

Source: CCN
Type: BID-21000
NetKit FTP Server ChDir Information Disclosure Vulnerability

Source: XF
Type: UNKNOWN
ftpd-chdir-security-bypass(30176)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:linux-ftpd-ssl:linux-ftpd-ssl:0.17:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.debian:def:1217
    V
    programming error
    2006-11-20
    BACK
    linux-ftpd-ssl linux-ftpd-ssl 0.17