Vulnerability CVE-2007-1057
Published: 2007-02-21   Modified: 2012-02-12

Description:
The Net Direct client for Linux before 6.0.5 in Nortel Application Switch 2424, VPN 3050 and 3070, and SSL VPN Module 1000 extracts and executes files with insecure permissions, which allows local users to exploit a race condition to replace a world-writable file in /tmp/NetClient and cause another user to execute arbitrary code when attempting to execute this client, as demonstrated by replacing /tmp/NetClient/client.

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
Nortel -> Net direct client 

 References:
http://www130.nortelnetworks.com/go/main.jsp?cscat=BLTNDETAIL&DocumentOID=540071
http://xforce.iss.net/xforce/xfdb/32597
http://www116.nortelnetworks.com/pub/repository/CLARIFY/DOCUMENT/2007/08/021886-01.pdf
http://www.vupen.com/english/advisories/2007/0671
http://www.securitytracker.com/id?1017678
http://www.securityfocus.com/bid/22632
http://www.milw0rm.com/exploits/3356
http://spoofed.org/blog/archive/2007/02/nortel_vpn_unix_client_local_root_compromise.html
http://secunia.com/advisories/24231
http://osvdb.org/33304
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