VDB-97876 · CVE-2017-5619 · BID 96937

Zammad up to 1.0.3/1.1.2/1.2.0 credentials 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.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Zammad up to 1.0.3/1.1.2/1.2.0. This impacts an unknown function. Executing a manipulation can lead to credentials management. This vulnerability is handled as CVE-2017-5619. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Zammad up to 1.0.3/1.1.2/1.2.0. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a credentials management vulnerability. The CWE definition for the vulnerability is CWE-255. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Zammad before 1.0.4, 1.1.x before 1.1.3, and 1.2.x before 1.2.1. Attackers can login with the hashed password itself (e.g., from the DB) instead of the valid password string.

The bug was discovered 02/14/2017. The weakness was released 03/13/2017 by Lukas Reschke (Website). The advisory is shared for download at zammad.com. This vulnerability was named CVE-2017-5619 since 01/29/2017. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1552.

The vulnerability was handled as a non-public zero-day exploit for at least 27 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.0.4, 1.1.3 or 1.2.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 96937†). Entries connected to this vulnerability are available at VDB-97877, VDB-97878, VDB-97882 and VDB-97883. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Zammad

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
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: Credentials management
CWE: CWE-255
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Zammad 1.0.4/1.1.3/1.2.1

Timelineinfo

01/29/2017 🔍
02/14/2017 +16 days 🔍
03/13/2017 +27 days 🔍
03/13/2017 +0 days 🔍
03/13/2017 +0 days 🔍
03/13/2017 +0 days 🔍
09/06/2020 +1273 days 🔍

Sourcesinfo

Advisory: zammad.com
Researcher: Lukas Reschke
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-5619 (🔍)
GCVE (CVE): GCVE-0-2017-5619
GCVE (VulDB): GCVE-100-97876
SecurityFocus: 96937 - Zammad Multiple Security Vulnerabilities
OSVDB: - CVE-2017-5619 - Zammad - Hashed Password Login Issue

See also: 🔍

Entryinfo

Created: 03/13/2017 13:26
Updated: 09/06/2020 10:58
Changes: 03/13/2017 13:26 (60), 09/06/2020 10:58 (6)
Complete: 🔍
Cache ID: 216::103