Home/CVE/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 u
CVE

CVE-2005-4890

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 u

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.

HIGH · CVSS 7.8 EPSS 0.00135
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules6 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

4
debian shadow>= 4.0.0 and <= 4.1.5
sudo project sudo>= 1.3.0 and <= 1.7.4
debian linuxall versions
redhat enterprise linuxall versions
◈

Sigma Hunt Rules

6
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighCopy Passwd Or Shadow From TMP Path
producthighDelete Volume Shadow Copies Via WMI With PowerShell
producthighDeletion of Volume Shadow Copies via WMI with PowerShell - PS Script
producthighCreate Volume Shadow Copy with Powershell
producthighShadow Copies Deletion Using Operating Systems Utilities
productlowLinux Sudo Chroot Execution
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD04 Nov 2019 · 07:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

11
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2012/11/06/8Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2013/05/20/3Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2013/11/28/10Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2013/11/29/5Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2014/10/20/9Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2014/10/21/1Mailing ListThird Party Advisory
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