CVE-2016-9553 in the critical feed json
The Sophos Web Appliance (version 4.2.1.3) is vulnerable to two Remote Command Injection vulnerabilities affecting its web administrative i…
published 2017-01-28 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10359
- cvss
- 7.2
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 19.8%
- EPSS 19.8% chance of exploitation in 30 days, percentile 97%
- public exploits
- 1
- Exploit-DB
Summary
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.
Timeline
- First public exploit (EDB-41413)
- Published
Exploit prediction
19.81% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-41413 Sophos Web Appliance 4.2.1.3 - block/unblock Remote Command Injection (Metasploit) webapps, 2016-12-12
- pastebin.com http://pastebin.com/DUYuN0U5 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.2 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-77 Improper Neutralization of Special Elements used in a Command
References
-
pastebin.com
/DUYuN0U5
exploit
-
swa.sophos.com
/rn/swa/concepts/ReleaseNotes_4.3.1.html
release-notes
-
securityfocus.com
/bid/95853
vdb-entry, third-party-advisory
-
community.sophos.com
/products/web-appliance/b/blog/posts/release-of-swa-version-4-3-1
release-notes
Sources
- CVE List CVE-2016-9553
- NVD CVE-2016-9553
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.