Vulnerability Note VU#300820
Cisco Prime Infrastructure contains SUID root binaries
Original Release date: 17 Aug 2015 | Last revised: 17 Aug 2015

Overview
The Cisco Prime Infrastructure version 2.2 contains two binaries with SUID root world-executable privileges, allowing any local user to execute arbitrary commands as root.

Description
CWE-276: Incorrect Default Permissions
Two binaries are included in Cisco Prime version 2.2 that run as SUID root with world-executable privileges. The commands are

/opt/CSCOlumos/bin/runShellCommand
/opt/CSCOlumos/bin/runShellAsRoot

These commands may be used to run arbitrary commands as root by any local user.

According to Cisco, the default installation does not create any regular users, and Cisco does not support or recommend creating regular users or utilizing the command line shell for administration. Cisco has provided more information in a security advisory (customer user account required to view).

Impact
A remote authenticated user may escalate privileges to root and execute arbitrary commands.

Solution
Apply an update

Cisco has released an update to address this issue. For more information on the update, please see Cisco’s security advisory (customer user account required to view). Affected users should update as soon as possible.

You may also consider the following workaround:
Restrict executable permissions

According to the reporter, affected users may remove the world-executable permissions on runShellCommand and runShellAsRoot to disallow any local account from utilizing these binaries.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate UpdatedCiscoAffected16 Mar 201508 May 2015If you are a vendor and your product is affected, let
us know.

CVSS Metrics (Learn More)

Group
Score
Vector

Base
9.0
AV:N/AC:L/Au:S/C:C/I:C/A:C

Temporal
8.5
E:H/RL:W/RC:C

Environmental
6.4
CDP:ND/TD:M/CR:ND/IR:ND/AR:ND

References

https://tools.cisco.com/bugsearch/bug/CSCut39938
https://tools.cisco.com/quickview/bug/CSCut39938

Credit

Thanks to Jeremy Brown for reporting this issue.
This document was written by Garret Wassermann.

Other Information

CVE IDs:
Unknown

Date Public:
31 Jul 2015

Date First Published:
17 Aug 2015

Date Last Updated:
17 Aug 2015

Document Revision:
56

FeedbackIf you have feedback, comments, or additional information about this vulnerability, please send us email.

Leave a Reply