VDB-130556 · CVE-2018-8792 · BID 106938

rdesktop up to 1.8.3 cssp_read_tsrequest out-of-bounds

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.
6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in rdesktop up to 1.8.3. It has been declared as problematic. This affects the function cssp_read_tsrequest. Such manipulation leads to out-of-bounds. This vulnerability is documented as CVE-2018-8792. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in rdesktop up to 1.8.3. Affected by this issue is the function cssp_read_tsrequest. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability. CVE summarizes:

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function cssp_read_tsrequest() that results in a Denial of Service (segfault).

The bug was discovered 02/05/2019. The weakness was released 02/05/2019 (Website). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2018-8792 since 03/19/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 277595 (Fedora Security Update for rdesktop (FEDORA-2019-5146cd34e2)).

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

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 106938†). Entries connected to this vulnerability are available at VDB-127328, VDB-127329, VDB-127330 and VDB-127331. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

03/19/2018 🔍
02/05/2019 +323 days 🔍
02/05/2019 +0 days 🔍
02/05/2019 +0 days 🔍
02/06/2019 +1 days 🔍
07/06/2023 +1611 days 🔍

Sourcesinfo

Product: github.com

Advisory: 4dca546d04321a610c1835010b5dad85163b65e1⛔
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-8792 (🔍)
GCVE (CVE): GCVE-0-2018-8792
GCVE (VulDB): GCVE-100-130556
SecurityFocus: 106938 - RDP Client 'FreeRDP' And 'rdesktop' Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 02/06/2019 13:49
Updated: 07/06/2023 10:36
Changes: 02/06/2019 13:49 (57), 05/08/2020 14:42 (5), 07/06/2023 10:31 (4), 07/06/2023 10:36 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!