Improper input validation in Sudo Project
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 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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (49.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Sudo Project
- Debian Linux — versions 8.0, 9.0, 10.0
- Debian Shadow
- Red Hat Shadow — versions 4.x before 4.1.5
- Red Hat Sudo — versions 1.x before 1.7.4
- Red Hat Enterprise Linux — versions 4, 5, 6.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openwall.com/lists/oss-security/2014/12/15/5 (Mailing List, Third Party Advisory)
- security-tracker.debian.org/tracker/CVE-2005-4890 (Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- access.redhat.com/security/cve/cve-2005-4890 (Third Party Advisory)
- www.openwall.com/lists/oss-security/2012/11/06/8 (Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2013/05/20/3 (Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2013/11/28/10 (Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2013/11/29/5 (Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2014/10/20/9 (Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2014/10/21/1 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2005-4890?
- CVE-2005-4890 is a high-severity vulnerability in Sudo Project, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2019-11-04.
- How severe is CVE-2005-4890?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2005-4890 known to be exploited?
- 16 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.