FreeRDP up to 2.0.0-rc3 NTLM Authentication out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.84

Summaryinfo

A vulnerability has been found in FreeRDP up to 2.0.0-rc3 and classified as problematic. This affects an unknown function of the component NTLM Authentication. This manipulation causes out-of-bounds. This vulnerability appears as CVE-2018-8789. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in FreeRDP up to 2.0.0-rc3. Affected by this vulnerability is an unknown part of the component NTLM Authentication. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. The summary by CVE is:

FreeRDP prior to version 2.0.0-rc4 contains several Out-Of-Bounds Reads in the NTLM Authentication module that results in a Denial of Service (segfault).

The bug was discovered 10/22/2018. The weakness was presented 11/29/2018 (GitHub Repository). The advisory is shared at github.com. This vulnerability is known as CVE-2018-8789 since 03/19/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 38 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 119655 (Ubuntu 14.04 LTS : freerdp, freerdp2 vulnerabilities (USN-3845-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197329 (Ubuntu Security Notification for FreeRDP Vulnerabilities (USN-3845-1)).

Upgrading to version 2.0.0-rc4 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (119655) and SecurityFocus (BID 106938†). See VDB-127328, VDB-127329, VDB-127330 and VDB-127331 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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

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: 119655
Nessus Name: Ubuntu 14.04 LTS : freerdp, freerdp2 vulnerabilities (USN-3845-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: FreeRDP 2.0.0-rc4
Patch: github.com

Timelineinfo

03/19/2018 🔍
10/22/2018 +217 days 🔍
11/29/2018 +38 days 🔍
11/29/2018 +0 days 🔍
11/30/2018 +1 days 🔍
12/12/2018 +12 days 🔍
12/13/2018 +1 days 🔍
02/05/2019 +54 days 🔍
06/12/2023 +1588 days 🔍

Sourcesinfo

Product: github.com

Advisory: 2ee663f39dc8dac3d9988e847db19b2d7e3ac8c6
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-8789 (🔍)
GCVE (CVE): GCVE-0-2018-8789
GCVE (VulDB): GCVE-100-127333
SecurityFocus: 106938 - RDP Client 'FreeRDP' And 'rdesktop' Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 11/30/2018 11:43
Updated: 06/12/2023 11:19
Changes: 11/30/2018 11:43 (74), 04/16/2020 11:47 (5), 06/12/2023 11:12 (5), 06/12/2023 11:19 (1)
Complete: 🔍
Cache ID: 216::103

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