Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Local
0

CVE-2005-4890

Disclosure Date: November 04, 2019
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

There is a possible tty hijacking in shadow 4.x before 4.1.5 and sudo 1.x before 1.7.4 via “su – user -c program”. The user session can be escaped to the parent session by using the TIOCSTI ioctl to push characters into the input buffer to be read by the next process.

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CVSS V3 Severity and Metrics
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • debian,
  • redhat,
  • sudo project

Products

  • debian linux 10.0,
  • debian linux 8.0,
  • debian linux 9.0,
  • enterprise linux 4,
  • enterprise linux 5,
  • enterprise linux 6.0,
  • shadow,
  • sudo
Technical Analysis