Vulnerability Details : CVE-2016-9553
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.
Products affected by CVE-2016-9553
- cpe:2.3:a:sophos:web_appliance:4.2.1.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-9553
3.62%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-9553
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.0
|
HIGH | AV:N/AC:L/Au:S/C:C/I:C/A:C |
8.0
|
10.0
|
NIST | |
7.2
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
NIST |
CWE ids for CVE-2016-9553
-
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-9553
-
http://swa.sophos.com/rn/swa/concepts/ReleaseNotes_4.3.1.html
Version 4.3.1 Release NotesRelease Notes
-
http://www.securityfocus.com/bid/95853
Sophos Web Appliance CVE-2016-9553 Multiple Remote Command Injection VulnerabilitiesThird Party Advisory;VDB Entry
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http://pastebin.com/DUYuN0U5
[Ruby] # Exploit Title: Sophos Web Appliance UnBlock/Block-IP Remote Command Injection - Pastebin.comExploit
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https://community.sophos.com/products/web-appliance/b/blog/posts/release-of-swa-version-4-3-1
Release of SWA version 4.3.1 - Blog - Web Appliance - Sophos CommunityRelease Notes
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