Jon Hart has reported a vulnerability in Net Direct Client for Linux, which can be exploited by malicious, local users to gain escalated privileges.
The vulnerability is caused by a combination of insecure permissions and a race condition when downloading and executing client binaries. This can be exploited to execute arbitrary commands with root privileges when a user uses the VPN client.
The vulnerability is reported in versions 6.0.1 through 6.0.3.
Solution: Update to version 6.0.5.
Provided and/or discovered by: Jon Hart, spoofed.org.
Original Advisory: Nortel Networks:
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Subject: Nortel Net Direct Client for Linux Privilege Escalation
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