Detections
Analytics
HP-UX ftpd PAM Authentication Configuration Weakness Authentication Bypass
high Nessus Plugin ID 33899
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Synopsis
The remote ftp server may allow remote privileged access.Description
According to its banner, the version of the HP-UX FTP server running on the remote host is at a patch level before PHNE_38458. Such versions reportedly contain a vulnerability that in certain account configurations could be exploited by an anonymous remote attacker to gain privileged access.Note that successful exploitation requires that pam is used for authenticating FTP users and that pam authentication passes when a user tries to log in while getpwnam returns NULL. This could occur, for example, if LDAP is used for pam authentication, the nsswitch.conf file does not include 'ldap' as a source for the 'passwd' database, and the attacker tries to log in with a username included in the LDAP directory.
Solution
Apply patch PHNE_38458 or later.See Also
http://www.securityfocus.com/advisories/15189
ftp://us-ffs.external.hp.com/hp-ux_patches/s700_800/11.X/PHNE_38458.txt
http://permalink.gmane.org/gmane.comp.security.oss.general/831
Plugin Details
Severity: High
ID: 33899
File Name: hpux_ftpd_priv_escalation.nasl
Version: 1.16
Type: remote
Family: FTP
Published: 8/15/2008
Updated: 1/11/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 7.6
Temporal Score: 5.6
Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: cpe:/o:hp:hp-ux
Exploit Ease: No known exploits are available
Reference Information
CVE: CVE-2008-1668
BID: 30666