Todd Miller sudo up to 1.8.20p1 Newline get_process_ttyname input validation

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.
6.8$0-$5k0.00

A vulnerability was found in Todd Miller sudo up to 1.8.20p1 (Operating System Utility Software) and classified as critical. This issue affects the function get_process_ttyname of the component Newline Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability.

The bug was discovered 06/05/2017. The weakness was published 06/05/2017 (Website). It is possible to read the advisory at sudo.ws. The identification of this vulnerability is CVE-2017-1000368. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 101005 (CentOS 6 / 7 : sudo (CESA-2017:1574)), which helps to determine the existence of the flaw in a target environment. It is running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197451 (Ubuntu Security Notification for Sudo Vulnerabilities (USN-3968-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (101005). Similar entries are available at 3180, 101873, 102744 and 118279.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.2
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 101005
Nessus Name: CentOS 6 / 7 : sudo (CESA-2017:1574)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 881932
OpenVAS Name: CentOS Update for sudo CESA-2017:1574 centos7
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: 🔍

Timelineinfo

06/02/2017 🔍
06/05/2017 +17088 days 🔍
06/05/2017 +0 days 🔍
06/05/2017 +0 days 🔍
06/05/2017 +0 days 🔍
06/06/2017 +1 days 🔍
06/22/2017 +16 days 🔍
06/23/2017 +1 days 🔍
12/07/2022 +1993 days 🔍

Sourcesinfo

Advisory: RHSA-2017:1574
Researcher: Stephane Chazelas
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-1000368 (🔍)
SecurityFocus: 98838 - Sudo CVE-2017-1000368 Incomplete Fix Local Privilege Escalation Vulnerability

See also: 🔍

Entryinfo

Created: 06/06/2017 08:54
Updated: 12/07/2022 18:50
Changes: 06/06/2017 08:54 (76), 10/13/2019 18:07 (6), 12/26/2020 09:45 (2), 12/07/2022 18:50 (3)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you want to use VulDB in your project?

Use the official API to access entries easily!