Apple Mac OS X up to 10.11.1 OpenLDAP input validation

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.
3.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple Mac OS X up to 10.11.1. It has been classified as problematic. The impacted element is an unknown function of the component OpenLDAP. Performing a manipulation results in input validation. This vulnerability is identified as CVE-2015-6908. The attack can be initiated remotely. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Apple Mac OS X up to 10.11.1 (Operating System). This affects an unknown code block of the component OpenLDAP. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on integrity, and availability. The summary by CVE is:

The ber_get_next function in libraries/liblber/io.c in OpenLDAP 2.4.42 and earlier allows remote attackers to cause a denial of service (reachable assertion and application crash) via crafted BER data, as demonstrated by an attack against slapd.

The weakness was released 12/08/2015 as HT205637 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2015-6908 since 09/11/2015. It is possible to initiate the attack remotely. The requirement for exploitation is a authentication. Technical details are unknown but a public exploit is available. The advisory points out:

An input validation issue existed in OpenLDAP. This issue was addressed through improved input validation.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 88165 (openSUSE Security Update : openldap2 (openSUSE-2016-92) (Logjam)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168454 (OpenSuSE Security Update for openldap2 (openSUSE-SU-2016:0226-1)).

Upgrading to version 10.11.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 21155.

The vulnerability is also documented in the databases at Exploit-DB (38145), Tenable (88165), SecurityFocus (BID 76714†) and Vulnerability Center (SBV-55138†). Entries connected to this vulnerability are available at VDB-77678, VDB-79541, VDB-79545 and VDB-79546. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Support

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.7
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 88165
Nessus Name: openSUSE Security Update : openldap2 (openSUSE-2016-92) (Logjam)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2015-599
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.11.2
Patch: 6fe51a9ab04fd28bbc171da3cf12f1c1040d6629
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

09/10/2015 🔍
09/11/2015 +1 days 🔍
09/11/2015 +0 days 🔍
12/08/2015 +88 days 🔍
12/08/2015 +0 days 🔍
12/09/2015 +1 days 🔍
12/10/2015 +1 days 🔍
01/26/2016 +47 days 🔍
11/17/2024 +3218 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205637
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-6908 (🔍)
GCVE (CVE): GCVE-0-2015-6908
GCVE (VulDB): GCVE-100-79581

OVAL: 🔍

SecurityFocus: 76714
SecurityTracker: 1033534
Vulnerability Center: 55138 - Apple MacOS X <10.11.2 Remote DoS Vulnerability due to an Issue in OpenLDAP - CVE-2015-6908, Medium

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 12/09/2015 14:05
Updated: 11/17/2024 03:52
Changes: 12/09/2015 14:05 (51), 05/14/2018 09:22 (30), 06/29/2022 16:15 (5), 11/17/2024 03:52 (23)
Complete: 🔍
Cache ID: 216:F11:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

Want to know what is going to be exploited?

We predict KEV entries!