OpenLDAP up to 2.4.23 modrdn.c resource management

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenLDAP. It has been classified as problematic. The affected element is an unknown function of the file modrdn.c. This manipulation causes resource management. This vulnerability is tracked as CVE-2011-1081. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in OpenLDAP (Directory Service Software). It has been declared as problematic. Affected by this vulnerability is an unknown code block of the file modrdn.c. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

modrdn.c in slapd in OpenLDAP 2.4.x before 2.4.24 allows remote attackers to cause a denial of service (daemon crash) via a relative Distinguished Name (DN) modification request (aka MODRDN operation) that contains an empty value for the OldDN field.

The weakness was disclosed 03/19/2011 as Bug 680975 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2011-1081 since 02/24/2011. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 53428 (CentOS 5 : openldap (CESA-2011:0346)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 155470 (Oracle Enterprise Linux Update for OpenLDAP (ELSA-2011-0347)).

Upgrading to version 2.4.22 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (66239), Exploit-DB (35445), Tenable (53428), SecurityFocus (BID 46831†) and Secunia (SA43331†). The entries VDB-56885 and VDB-56884 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 53428
Nessus Name: CentOS 5 : openldap (CESA-2011:0346)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 68939
OpenVAS Name: FreeBSD Ports: openldap-server
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenLDAP 2.4.22
ISS Proventia IPS: 🔍

Timelineinfo

01/03/2011 🔍
01/03/2011 +0 days 🔍
02/14/2011 +42 days 🔍
02/24/2011 +10 days 🔍
03/14/2011 +18 days 🔍
03/19/2011 +5 days 🔍
03/19/2011 +0 days 🔍
03/20/2015 +1462 days 🔍
08/18/2024 +3439 days 🔍

Sourcesinfo

Advisory: Bug 680975
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1081 (🔍)
GCVE (CVE): GCVE-0-2011-1081
GCVE (VulDB): GCVE-100-56887

OVAL: 🔍

X-Force: 66239
SecurityFocus: 46831 - OpenLDAP 'modrdn' NULL OldDN Remote Denial of Service Vulnerability
Secunia: 43331 - OpenLDAP Multiple Vulnerabilities, Less Critical
SecurityTracker: 1025191
Vulnerability Center: 30340 - OpenLDAP Before 2.4.24 Remote Denial of Service Vulnerability, High
Vupen: ADV-2011-0665

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/20/2015 16:16
Updated: 08/18/2024 23:45
Changes: 03/20/2015 16:16 (65), 03/19/2017 07:41 (16), 10/20/2021 00:24 (3), 08/18/2024 23:45 (18)
Complete: 🔍
Cache ID: 216:47F:103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!