OpenLDAP 2.4.22 modrdn.c slap_mods_free access control

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, which was classified as critical, was found in OpenLDAP 2.4.22. This impacts the function slap_mods_free of the file modrdn.c. Such manipulation leads to access control. This vulnerability is referenced as CVE-2010-0211. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in OpenLDAP 2.4.22 (Directory Service Software) and classified as critical. Affected by this issue is the function slap_mods_free of the file modrdn.c. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is availability. CVE summarizes:

The slap_modrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return value of a call to the smr_normalize function, which allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a modrdn call with an RDN string containing invalid UTF-8 sequences, which triggers a free of an invalid, uninitialized pointer in the slap_mods_free function, as demonstrated using the Codenomicon LDAPv3 test suite.

The weakness was published 07/28/2010 (Website). The advisory is shared for download at kb.juniper.net. This vulnerability is handled as CVE-2010-0211. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1068.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 68064 (Oracle Linux 5 : openldap (ELSA-2010-0542)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 118698 (Fedora Update for OpenLDAP (FEDORA-2010-11343)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 10662.

The vulnerability is also documented in the databases at Exploit-DB (34348), Tenable (68064), SecurityFocus (BID 41770†), SecurityTracker (ID 1024221†) and Vulnerability Center (SBV-26638†). Similar entry is available at VDB-54141. Once again VulDB remains the best 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: Access control
CWE: CWE-264
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: 68064
Nessus Name: Oracle Linux 5 : openldap (ELSA-2010-0542)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 67833
OpenVAS Name: Debian Security Advisory DSA 2077-1 (openldap)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

01/06/2010 🔍
07/19/2010 +194 days 🔍
07/28/2010 +9 days 🔍
07/28/2010 +0 days 🔍
07/28/2010 +0 days 🔍
08/02/2010 +5 days 🔍
07/12/2013 +1075 days 🔍
03/19/2015 +615 days 🔍
12/29/2024 +3573 days 🔍

Sourcesinfo

Advisory: RHSA-2010:0542
Status: Not defined
Confirmation: 🔍

CVE: CVE-2010-0211 (🔍)
GCVE (CVE): GCVE-0-2010-0211
GCVE (VulDB): GCVE-100-54140

OVAL: 🔍

SecurityFocus: 41770 - OpenLDAP 'modrdn' Request Multiple Vulnerabilities
Secunia: 40639
SecurityTracker: 1024221
Vulnerability Center: 26638 - OpenLDAP 2.4.22 slap_modrdn2mods Function Remote DoS or Code Execution Vulnerability, Critical

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

Entryinfo

Created: 03/19/2015 14:37
Updated: 12/29/2024 04:43
Changes: 03/19/2015 14:37 (63), 03/01/2017 11:48 (12), 09/21/2021 07:15 (6), 09/21/2021 07:21 (1), 11/07/2024 05:46 (25), 12/29/2024 04:43 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!