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High severity · published Nov 4, 2019
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"
7.8
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0; 10.0 · source: NVD
EL
Enterprise Linux · Redhat
4; 5; 6.0 · source: NVD
SH
Shadow · Debian
4.0.0 through 4.1.5 · source: NVD
SU
Sudo · Sudo Project
1.3.0 through 1.7.4 · source: NVD
Affected product
DL
Debian Linux
Debian
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2005-4890
CVE.org
https://www.cve.org/CVERecord?id=CVE-2005-4890
Mailing List
http://www.openwall.com/lists/oss-security/2012/11/06/8
Mailing List
http://www.openwall.com/lists/oss-security/2013/05/20/3
Mailing List
http://www.openwall.com/lists/oss-security/2013/11/28/10
Mailing List
http://www.openwall.com/lists/oss-security/2013/11/29/5
Mailing List
http://www.openwall.com/lists/oss-security/2014/10/20/9
Mailing List
http://www.openwall.com/lists/oss-security/2014/10/21/1
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