HOMEVULNERABILITIESCVE-2016-7955
CRITICAL

CVE-2016-7955

CWE-264Published: March 15, 2017· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

The logcheck function in session.inc in AlienVault OSSIM before 5.3.1, when an action has been created, and USM before 5.3.1 allows remote attackers to bypass authentication and consequently obtain sensitive information, modify the application, or execute arbitrary code as root via an "AV Report Scheduler" HTTP User-Agent header.

NVD Source

Technical Analysis

CVE-2016-7955 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

alienvault2 product(s)
ossimunified security management
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.zerodayinitiative.com/advisories/ZDI-16-517/
ADVISORYhttps://www.alienvault.com/forums/discussion/7765/alienvault-v5-3-1-hotfix
ADVISORYhttp://www.zerodayinitiative.com/advisories/ZDI-16-517/
ADVISORYhttps://www.alienvault.com/forums/discussion/7765/alienvault-v5-3-1-hotfix

All References (6)

→
http://www.securityfocus.com/archive/1/540224/100/0/threaded
→
http://www.zerodayinitiative.com/advisories/ZDI-16-517/Third Party Advisory · VDB Entry
→
https://www.alienvault.com/forums/discussion/7765/alienvault-v5-3-1-hotfixVendor Advisory
→
http://www.securityfocus.com/archive/1/540224/100/0/threaded
→
http://www.zerodayinitiative.com/advisories/ZDI-16-517/Third Party Advisory · VDB Entry
→
https://www.alienvault.com/forums/discussion/7765/alienvault-v5-3-1-hotfixVendor Advisory

Quick Facts

CVE IDCVE-2016-7955
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-264
CISA KEVNo
Affected1 vendor(s)
PublishedMar 15, 2017

Related CVEs (CWE-264)

CVE-2014-1376
10.0
CVE-2014-1381
10.0
CVE-2014-9353
10.0
CVE-2014-1373
10.0
CVE-2012-5390
10.0
CVE-2014-0540
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-7955 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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