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Vulnerability record · CVE-2016-7955 · published 15 March 2017

CVE-2016-7955: Alienvault ossim permissions and access controls vulnerability

Alienvault · Ossim

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.

9.8 CVSS 3.0 Critical EPSS 6.4% · top 6.6% CWE-264 · Permissions and access controls
9.8CVSS 3.0 base score, v2 7.5
6.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/archive/1/540224/100/0/threaded
http://www.zerodayinitiative.com/advisories/ZDI-16-517/ Third Party AdvisoryVDB Entry
https://www.alienvault.com/forums/discussion/7765/alienvault-v5-3-1-hotfix Vendor Advisory
http://www.securityfocus.com/archive/1/540224/100/0/threaded
http://www.zerodayinitiative.com/advisories/ZDI-16-517/ Third Party AdvisoryVDB Entry
https://www.alienvault.com/forums/discussion/7765/alienvault-v5-3-1-hotfix Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-7279Alienvault open source security information management vulnerabilityA remote code execution issue was discovered in AlienVault USM and OSSIM before 5.5.1.EPSS 2.4%9.8CVE-2017-6972Alienvault ossim vulnerabilityAlienVault USM and OSSIM before 5.3.7 and NfSen before 1.3.8 have an error in privilege dropping and unnecessarily execute the NfSen Perl code as roo…EPSS 15%9.8CVE-2016-8582AlienVault OSSIM/USM gauge.php SQL injection enables arbitrary query executionAlienVault OSSIM and USM before 5.3.2 contain a SQL injection flaw in gauge.php that lets an attacker run arbitrary SQL queries against the backend d…EPSS 57%analysed9.8CVE-2016-8580Alienvault open source security information and event management improper access control vulnerabilityPHP object injection vulnerabilities exist in multiple widget files in AlienVault OSSIM and USM before 5.3.2. These vulnerabilities allow arbitrary P…EPSS 6.9%9.3CVE-2015-3446Alienvault unified security management code injection vulnerabilityThe Framework Daemon in AlienVault Unified Security Management before 4.15 allows remote attackers to execute arbitrary Python code via a crafted plu…EPSS 2.4%8.8CVE-2017-6971Alienvault ossim injection vulnerabilityAlienVault USM and OSSIM before 5.3.7 and NfSen before 1.3.8 allow remote authenticated users to execute arbitrary commands in a privileged context, …EPSS 16%8.4CVE-2017-6970Alienvault ossim os command injection vulnerabilityAlienVault USM and OSSIM before 5.3.7 and NfSen before 1.3.8 allow local users to execute arbitrary commands in a privileged context via an NfSen soc…EPSS 1.7%6.5CVE-2009-3439Alienvault ossim sql injection vulnerabilityMultiple SQL injection vulnerabilities in Open Source Security Information Management (OSSIM) before 2.1.2 allow remote authenticated users to execut…EPSS 0.86%

Source: NIST National Vulnerability Database (record CVE-2016-7955), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.