xrdp up to 0.9.0 sesman_${username}_passwd /.vnc/sesman_${username}_passwd 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-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in xrdp up to 0.9.0. Impacted is an unknown function of the file /.vnc/sesman_${username}_passwd. Performing a manipulation of the argument /.vnc/sesman_${username}_passwd results in credentials management. This vulnerability is cataloged as CVE-2013-1430. The attack must be initiated from a local position. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in xrdp up to 0.9.0. This affects an unknown code of the file /.vnc/sesman_${username}_passwd. The manipulation of the argument /.vnc/sesman_${username}_passwd with an unknown input leads to a credentials management vulnerability. CWE is classifying the issue as CWE-255. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in xrdp before 0.9.1. When successfully logging in using RDP into an xrdp session, the file ~/.vnc/sesman_${username}_passwd is created. Its content is the equivalent of the user's cleartext password, DES encrypted with a known key.

The bug was discovered 12/16/2016. The weakness was shared 12/16/2016 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2013-1430 since 01/26/2013. Attacking locally is a requirement. A authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 97500 (Fedora 24 : 1:xrdp (2017-05e32fe278)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276477 (Fedora Security Update for xrdp (FEDORA-2017-8fffbae8af)).

Upgrading to version 0.9.1 eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97500) and SecurityFocus (BID 94958†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

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

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Credentials management
CWE: CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 97500
Nessus Name: Fedora 24 : 1:xrdp (2017-05e32fe278)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for xrdp FEDORA-2017-8fffbae8af
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: xrdp 0.9.1
Patch: github.com

Timelineinfo

01/26/2013 🔍
12/16/2016 +1420 days 🔍
12/16/2016 +0 days 🔍
12/16/2016 +0 days 🔍
12/16/2016 +0 days 🔍
12/16/2016 +0 days 🔍
03/02/2017 +76 days 🔍
03/03/2017 +1 days 🔍
12/27/2024 +2856 days 🔍

Sourcesinfo

Advisory: FEDORA-2017-05e32fe278⛔
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-1430 (🔍)
GCVE (CVE): GCVE-0-2013-1430
GCVE (VulDB): GCVE-100-94539
SecurityFocus: 94958 - xrdp CVE-2013-1430 Information Disclosure Vulnerability

Entryinfo

Created: 12/16/2016 15:37
Updated: 12/27/2024 23:10
Changes: 12/16/2016 15:37 (72), 07/09/2019 11:56 (6), 10/12/2022 07:15 (4), 10/12/2022 07:20 (1), 12/27/2024 23:10 (18)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!