Unix talkd/walld Escape Sequence denial of service

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-$5k	0.00

Summaryinfo

A vulnerability was found in Unix and classified as problematic. This issue affects some unknown processing of the component talkd/walld. The manipulation as part of Escape Sequence leads to denial of service. The attack may be initiated remotely. Furthermore, there is an exploit available. Due to its background and reception, this vulnerability has an historic impact. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability has been found in Unix (Operating System) (the affected version unknown) and classified as problematic. This vulnerability affects an unknown part of the component talkd/walld. The manipulation as part of a Escape Sequence leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was released 01/01/1985 (Website). The advisory is available at securitybugware.org. The attack can be initiated remotely. A single authentication is necessary for exploitation. Technical details are unknown but an exploit is available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/13/2020). This vulnerability is assigned to T1499 by the MITRE ATT&CK project. This vulnerability has a historic impact due to its background and reception.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept.

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 databases at X-Force (615) and OSVDB (17043†). Entry connected to this vulnerability is available at VDB-94850. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Operating System

Name

Unix

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
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: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

01/01/1985 🔍
01/01/1985 +0 days 🔍
04/09/2004 +7037 days 🔍
01/02/2017 +4651 days 🔍
07/13/2020 +1288 days 🔍

Sourcesinfo

Advisory: securitybugware.org
Status: Not defined

GCVE (VulDB): GCVE-100-94846
X-Force: 615
OSVDB: 17043 - Multiple Unix talkd/walld Escape Sequence Screen Disruption DoS

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/02/2017 17:16
Updated: 07/13/2020 08:06
Changes: 01/02/2017 17:16 (43), 07/13/2020 08:06 (2)
Complete: 🔍
Cache ID: 216:03A:103