Tried, Tested and Proven

Vulnerability title: Insecure Sudo Configuration in Symmetricom s350i

CVE: CVE-2014-5065
Vendor: Symmetricom
Product: s350i
Affected version: 2.70.15
Fixed version: N/A
Reported by: Mike Emery

Details:

It was discovered that the sudo rules configured allowed root access without a password prompt.

In particular:

  • The nobody user (used by the web server) was able to run all commands as root without providing a password
  • The USERS group (to which shell users are added) was able to run a limited number of commands as root without providing a password

In the latter case, the USERS group is granted access to both:

/bin/ln
/usr/bin/*ifaces.pl
/usr/bin/*daemons.pl
/etc/init.d/*

The use of these commands combine to allow any user with a shell root access.

Impact:

Where password prompting is not enabled there is a chance that an attacker could access a compromised program to gain further privileges. Alternatively, an unattended SSH session could be abused if physical access to a workstation was possible.

Exploit:

Exploit code is not required

Vendor status:

30/05/2014 Advisory created
10/06/2014 Vendor contacted
09/07/2014 Vendor contact reattempted
28/07/2014 CVE obtained and provisional release date set
13/08/2014 Final vendor contact initiated
20/08/2014 First vendor response
20/08/2014 Vendor advised of release date and more information on fix time
frame requested
28/08/2014 Vendor contacted to re-emphasise release dates as no response from
previous contact was received
29/08/2014 Vendor responded requesting a discussion before release. This was
not possible due to time zone differences
29/08/2014 Published
01/09/2014 In discussion with vendor following a period of non-response

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