Advisory Details

April 8th, 2014

Sophos Web Appliance Privilege Escalation and Remote Code Execution Vulnerability

ZDI-14-069
ZDI-CAN-2026

CVE ID CVE-2014-2849
CVSS SCORE 8.5, (AV:N/AC:M/Au:S/C:C/I:C/A:C)
AFFECTED VENDORS Sophos
AFFECTED PRODUCTS Web Appliance
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Sophos Web Appliance. Authentication is required to exploit this vulnerability.

The specific flaws exist within the change_password and netinterface functions of the web appliance. The first flaw will allow for an unprivileged user to change the admin's password and a remote code execution vulnerability exists when updating the network interface. This allows for an attacker to execute under root privileges.

VENDOR RESPONSE Sophos has issued an update to correct this vulnerability. More details can be found at:
http://www.sophos.com/en-us/support/knowledgebase/120230.aspx
DISCLOSURE TIMELINE
  • 2014-01-05 - Vulnerability reported to vendor
  • 2014-04-08 - Coordinated public release of advisory
CREDIT Brandon Perry
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