Vulnerability CVE-2007-4138


Published: 2007-09-13   Modified: 2012-02-12

Description:
The Winbind nss_info extension (nsswitch/idmap_ad.c) in idmap_ad.so in Samba 3.0.25 through 3.0.25c, when the "winbind nss info" option is set to rfc2307 or sfu, grants all local users the privileges of gid 0 when the (1) RFC2307 or (2) Services for UNIX (SFU) primary group attribute is not defined.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Winbind\'s rfc2307 & SFU nss_info plugin in Samba 3.0.25[a-c] assigns users a primary gid of 0 by default
Gerald (Jerry) C...
15.09.2007

Type:

CWE-264

(Permissions, Privileges, and Access Controls)

CVSS2 => (AV:L/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.9/10
10/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Samba -> Samba 

 References:
http://docs.info.apple.com/article.html?artnum=307179
http://securityreason.com/securityalert/3135
http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.419439
http://www.redhat.com/support/errata/RHSA-2007-1016.html
http://www.redhat.com/support/errata/RHSA-2007-1017.html
http://www.samba.org/samba/security/CVE-2007-4138.html
http://www.securityfocus.com/archive/1/479078/100/0/threaded
http://www.securityfocus.com/bid/25636
http://www.securitytracker.com/id?1018681
http://www.us-cert.gov/cas/techalerts/TA07-352A.html
http://www.vupen.com/english/advisories/2007/3120
https://exchange.xforce.ibmcloud.com/vulnerabilities/36560
https://issues.rpath.com/browse/RPL-1705
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10375
https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00201.html

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