389 Directory Server up to 1.3.5 LDAP Service uiduniq.c uniqueness_entry_to_config out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in 389 Directory Server up to 1.3.5 and classified as problematic. The impacted element is the function uniqueness_entry_to_config of the file uiduniq.c of the component LDAP Service. Such manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2017-2591. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in 389 Directory Server up to 1.3.5 (Directory Service Software) and classified as problematic. Affected by this issue is the function uniqueness_entry_to_config of the file uiduniq.c of the component LDAP Service. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability. CVE summarizes:

389-ds-base before version 1.3.6 is vulnerable to an improperly NULL terminated array in the uniqueness_entry_to_config() function in the "attribute uniqueness" plugin of 389 Directory Server. An authenticated, or possibly unauthenticated, attacker could use this flaw to force an out-of-bound heap memory read, possibly triggering a crash of the LDAP service.

The bug was discovered 12/01/2016. The weakness was disclosed 04/30/2018 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is handled as CVE-2017-2591 since 12/01/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 382 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 105366 (openSUSE Security Update : 389-ds (openSUSE-2017-1396)), 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 170647 (OpenSUSE Security Update for 389-ds (openSUSE-SU-2017:3362-1)).

Upgrading to version 1.3.6 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (105366) and SecurityFocus (BID 95670†). The entries VDB-105393 and VDB-119802 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 3.7
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 105366
Nessus Name: openSUSE Security Update : 389-ds (openSUSE-2017-1396)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: 389 Directory Server 1.3.6

Timelineinfo

12/01/2016 🔍
12/01/2016 +0 days 🔍
01/20/2017 +50 days 🔍
12/18/2017 +332 days 🔍
12/19/2017 +1 days 🔍
04/30/2018 +131 days 🔍
04/30/2018 +0 days 🔍
05/01/2018 +1 days 🔍
03/08/2023 +1772 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-2591 (🔍)
GCVE (CVE): GCVE-0-2017-2591
GCVE (VulDB): GCVE-100-117212
SecurityFocus: 95670 - 389 Directory Server CVE-2017-2591 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 05/01/2018 10:50
Updated: 03/08/2023 09:31
Changes: 05/01/2018 10:50 (74), 02/01/2020 11:45 (4), 03/08/2023 09:31 (14)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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