CVE-2011-2489

Debian Security Advisory 2281-1

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Multiple off-by-one errors in opiesu.c in opiesu in OPIE 2.4.1-test1 and earlier might allow local users to gain privileges via a crafted command line.

Múltiples errores "off-by-one" (desbordamiento por un elemento) en opiesu.c de opiesu en OPIE 2.4.1-test1 y versiones anteriores permiten a usuarios locales escalar privilegios a través de un comando modificado.

Sebastian Krahmer discovered that opie, a system that makes it simple to use One-Time passwords in applications, is prone to a privilege escalation (CVE-2011-2490) and an off-by-one error, which can lead to the execution of arbitrary code (CVE-2011-2489). Adam Zabrocki and Maksymilian Arciemowicz also discovered another off-by-one error (CVE-2010-1938), which only affects the lenny version as the fix was already included for squeeze.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-06-15 CVE Reserved
2011-07-21 CVE Published
2024-08-06 CVE Updated
2024-08-06 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-189: Numeric Errors

CAPEC

References (11)

URL	Tag	Source
http://secunia.com/advisories/45448	Third Party Advisory
http://www.securityfocus.com/bid/48390	Vdb Entry

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2011/06/22/6	2024-08-06
http://www.openwall.com/lists/oss-security/2011/06/23/5	2024-08-06
https://bugzilla.novell.com/show_bug.cgi?id=698772	2024-08-06

URL	Date	SRC
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631344	2011-09-07
https://bugzillafiles.novell.org/attachment.cgi?id=435902	2011-09-07

URL	Date	SRC
http://secunia.com/advisories/45136	2011-09-07
http://www.debian.org/security/2011/dsa-2281	2011-09-07
https://hermes.opensuse.org/messages/10082052	2011-09-07
https://hermes.opensuse.org/messages/10082068	2011-09-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nrl Search vendor "Nrl"		Opie Search vendor "Nrl" for product "Opie"				<= 2.4.1 Search vendor "Nrl" for product "Opie" and version " <= 2.4.1"		test1		Affected
Nrl Search vendor "Nrl"		Opie Search vendor "Nrl" for product "Opie"				2.2 Search vendor "Nrl" for product "Opie" and version "2.2"		-		Affected
Nrl Search vendor "Nrl"		Opie Search vendor "Nrl" for product "Opie"				2.3 Search vendor "Nrl" for product "Opie" and version "2.3"		-		Affected
Nrl Search vendor "Nrl"		Opie Search vendor "Nrl" for product "Opie"				2.4 Search vendor "Nrl" for product "Opie" and version "2.4"		-		Affected
Nrl Search vendor "Nrl"		Opie Search vendor "Nrl" for product "Opie"				2.10 Search vendor "Nrl" for product "Opie" and version "2.10"		-		Affected
Nrl Search vendor "Nrl"		Opie Search vendor "Nrl" for product "Opie"				2.11 Search vendor "Nrl" for product "Opie" and version "2.11"		-		Affected
Nrl Search vendor "Nrl"		Opie Search vendor "Nrl" for product "Opie"				2.21 Search vendor "Nrl" for product "Opie" and version "2.21"		-		Affected
Nrl Search vendor "Nrl"		Opie Search vendor "Nrl" for product "Opie"				2.22 Search vendor "Nrl" for product "Opie" and version "2.22"		-		Affected
Nrl Search vendor "Nrl"		Opie Search vendor "Nrl" for product "Opie"				2.32 Search vendor "Nrl" for product "Opie" and version "2.32"		-		Affected