VDB-91010 · CVE-2016-7115 · BID 92699

MAC-Telnet up to 0.4.3 MT_CPTYPE_PASSSALT Control Packet mactelnet.c handle_packet memory corruption

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.
9.6	$0-$5k	0.00

A vulnerability, which was classified as very critical, has been found in MAC-Telnet up to 0.4.3 (Remote Access Software). Affected by this issue is the function handle_packet of the file mactelnet.c of the component MT_CPTYPE_PASSSALT Control Packet Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in the handle_packet function in mactelnet.c in the client in MAC-Telnet 0.4.3 and earlier allows remote TELNET servers to execute arbitrary code via a long string in an MT_CPTYPE_PASSSALT control packet.

The weakness was published 08/30/2016 (Website). The advisory is available at github.com. This vulnerability is handled as CVE-2016-7115 since 08/30/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/14/2022).

The vulnerability scanner Nessus provides a plugin with the ID 93692 (Debian DLA-639-1 : mactelnet security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (93692).

Productinfo

Type

Remote Access Software

Name

MAC-Telnet

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 93692
Nessus Name: Debian DLA-639-1 : mactelnet security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: github.com

Timelineinfo

08/30/2016 🔍
08/30/2016 +0 days 🔍
08/30/2016 +0 days 🔍
08/31/2016 +1 days 🔍
09/01/2016 +1 days 🔍
09/25/2016 +24 days 🔍
09/26/2016 +1 days 🔍
09/14/2022 +2179 days 🔍

Sourcesinfo

Advisory: b69d11727d4f0f8cf719c79e3fb700f55ca03e9a
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7115 (🔍)
SecurityFocus: 92699 - MAC-Telnet 'mactelnet.c' Buffer Overflow Vulnerability

Entryinfo

Created: 09/01/2016 09:20
Updated: 09/14/2022 14:31
Changes: 09/01/2016 09:20 (58), 04/05/2019 22:17 (15), 09/14/2022 14:30 (4), 09/14/2022 14:31 (1)
Complete: 🔍