Lexmark Device LDAP/SMTP Credentials information disclosure

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.
4.1$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Lexmark Device. This affects an unknown part of the component LDAP/SMTP. Executing a manipulation can lead to information disclosure (Credentials). The identification of this vulnerability is CVE-2018-17944. The attack can only be executed locally. There is no exploit available.

Detailsinfo

A vulnerability has been found in Lexmark Device (Printing Software) (unknown version) and classified as problematic. This vulnerability affects an unknown code block of the component LDAP/SMTP. The manipulation with an unknown input leads to a information disclosure vulnerability (Credentials). The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

On certain Lexmark devices that communicate with an LDAP or SMTP server, a malicious administrator can discover LDAP or SMTP credentials by changing that server's hostname to one that they control, and then capturing the credentials that are sent there. This occurs because stored credentials are not automatically deleted upon that type of hostname change.

The bug was discovered 01/28/2019. The weakness was shared 03/12/2019 (Website). The advisory is shared for download at support.lexmark.com. This vulnerability was named CVE-2018-17944 since 10/03/2018. The attack needs to be approached locally. The requirement for exploitation is a single authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability was handled as a non-public zero-day exploit for at least 43 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.1

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.9
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Credentials
Class: Information disclosure / Credentials
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/03/2018 🔍
01/28/2019 +117 days 🔍
03/12/2019 +43 days 🔍
03/13/2019 +1 days 🔍
05/15/2020 +429 days 🔍

Sourcesinfo

Advisory: support.lexmark.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-17944 (🔍)
GCVE (CVE): GCVE-0-2018-17944
GCVE (VulDB): GCVE-100-131584

Entryinfo

Created: 03/13/2019 06:47
Updated: 05/15/2020 16:11
Changes: 03/13/2019 06:47 (57), 05/15/2020 16:11 (2)
Complete: 🔍
Cache ID: 216::103

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