CVE-2016-0226

IBM Informix portmap Service Privilege Escalation Vulnerability

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The client implementation in IBM Informix Dynamic Server 11.70.xCn on Windows does not properly restrict access to the (1) nsrd, (2) nsrexecd, and (3) portmap executable files, which allows local users to gain privileges via a Trojan horse file.

La implementación del cliente en IBM Informix Dynamic Server 11.70.xCn en Windows no restringe adecuadamente el acceso a los archivos ejecutables (1) nsrd, (2) nsrexecd y (3) portmap, lo que permite a usuarios locales obtener privilegios a través de un archivo troyano.

This vulnerability allows local users to execute arbitrary code on vulnerable installations of IBM Informix. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within configuration of the portmap service. Weak access control allows all authenticated users to modify the binary for this service and thus execute code in the context of SYSTEM.

*Credits: Steven Seeley of Source Incite

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Attack Vector

Local

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-12-08 CVE Reserved
2016-03-22 CVE Published
2024-08-01 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (5)

URL	Tag	Source
http://www.securitytracker.com/id/1035286	Vdb Entry
http://zerodayinitiative.com/advisories/ZDI-16-208	X_refsource_misc
http://zerodayinitiative.com/advisories/ZDI-16-209	X_refsource_misc
http://zerodayinitiative.com/advisories/ZDI-16-210	X_refsource_misc

URL	Date	SRC

URL	Date	SRC
http://www-01.ibm.com/support/docview.wss?uid=swg21978598	2016-12-03

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ibm Search vendor "Ibm"	Informix Dynamic Server Search vendor "Ibm" for product "Informix Dynamic Server"	11.70.xcn Search vendor "Ibm" for product "Informix Dynamic Server" and version "11.70.xcn"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	*	-	Safe