389-ds-base up to 1.3.5.18/1.3.6.6 Return Code password recovery

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.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in 389-ds-base up to 1.3.5.18/1.3.6.6. This affects an unknown part of the component Return Code Handler. Performing a manipulation results in password recovery. This vulnerability was named CVE-2017-7551. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in 389-ds-base up to 1.3.5.18/1.3.6.6. This affects an unknown functionality of the component Return Code Handler. The manipulation with an unknown input leads to a password recovery vulnerability. CWE is classifying the issue as CWE-640. The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak. This is going to have an impact on confidentiality. The summary by CVE is:

389-ds-base version before 1.3.5.19 and 1.3.6.7 are vulnerable to password brute-force attacks during account lockout due to different return codes returned on password attempts.

The bug was discovered 07/31/2017. The weakness was presented 08/16/2017 (Website). The advisory is shared at pagure.io. This vulnerability is uniquely identified as CVE-2017-7551 since 04/05/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1552 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 16 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103035 (CentOS 7 : 389-ds-base (CESA-2017:2569)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS 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 1.3.5.19 or 1.3.6.7 eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (103035). See VDB-117212 and VDB-119802 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• 389-ds-base

Version

• 1.3.5.0
• 1.3.5.1
• 1.3.5.2
• 1.3.5.3
• 1.3.5.4
• 1.3.5.5
• 1.3.5.6
• 1.3.5.7
• 1.3.5.8
• 1.3.5.9
• 1.3.5.10
• 1.3.5.11
• 1.3.5.12
• 1.3.5.13
• 1.3.5.14
• 1.3.5.15
• 1.3.5.16
• 1.3.5.17
• 1.3.5.18
• 1.3.6.0
• 1.3.6.1
• 1.3.6.2
• 1.3.6.3
• 1.3.6.4
• 1.3.6.5
• 1.3.6.6

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Password recovery
CWE: CWE-640
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 103035
Nessus Name: CentOS 7 : 389-ds-base (CESA-2017:2569)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 871165
OpenVAS Name: RedHat Update for 389-ds-base RHSA-2017:2569-01
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: 389-ds-base 1.3.5.19/1.3.6.7

Timelineinfo

04/05/2017 🔍
07/31/2017 +117 days 🔍
08/16/2017 +16 days 🔍
08/16/2017 +0 days 🔍
08/17/2017 +1 days 🔍
09/07/2017 +21 days 🔍
09/08/2017 +1 days 🔍
12/16/2022 +1925 days 🔍

Sourcesinfo

Advisory: RHSA-2017:2569
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-7551 (🔍)
GCVE (CVE): GCVE-0-2017-7551
GCVE (VulDB): GCVE-100-105393
See also: 🔍

Entryinfo

Created: 08/17/2017 09:07
Updated: 12/16/2022 06:44
Changes: 08/17/2017 09:07 (74), 11/07/2019 15:53 (3), 12/16/2022 06:44 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

Interested in the pricing of exploits?

See the underground prices here!