CVE-2016-9553

HIGH

Sophos Web Appliance 4.2.1.3 - Authenticated Remote Command Injection via MgrReport.php

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2016-9553. PoCs published by xort.

AI-analyzed exploit summary This Metasploit module exploits a remote command injection vulnerability in Sophos Web Appliance <= v4.2.1.3 via the 'blockip' or 'unblockip' parameters in MgrReport.php. It supports both direct command execution and payload delivery via an encoded ELF binary.

Description

The Sophos Web Appliance (version 4.2.1.3) is vulnerable to two Remote Command Injection vulnerabilities affecting its web administrative interface. These vulnerabilities occur in the MgrReport.php (/controllers/MgrReport.php) component responsible for blocking and unblocking IP addresses from accessing the device. The device doesn't properly escape the information passed in the variables 'unblockip' and 'blockip' before calling the shell_exec() function which allows for system commands to be injected into the device. The code erroneously suggests that the information handled is protected by utilizing the variable name 'escapedips' - however this was not the case. The Sophos ID is NSWA-1258.

Exploits (1)

exploitdb WORKING POC VERIFIED
by xort · rubywebappsphp
https://www.exploit-db.com/exploits/41413

This Metasploit module exploits a remote command injection vulnerability in Sophos Web Appliance <= v4.2.1.3 via the 'blockip' or 'unblockip' parameters in MgrReport.php. It supports both direct command execution and payload delivery via an encoded ELF binary.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Sophos Web Appliance <= v4.2.1.3
Auth required
Prerequisites: Valid credentials for the Sophos Web Appliance · Network access to the target device
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/95853
Exploit x_refsource_misc
http://pastebin.com/DUYuN0U5

Scores

CVSS v3 7.2
EPSS 0.1931
EPSS Percentile 97.0%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-77
Status published
Products (1)
sophos/web_appliance 4.2.1.3
Published Jan 28, 2017
Tracked Since Feb 18, 2026