RCE in Tldp Advanced Bash-Scripting Guide
CVE-2019-9891
The function getopt_simple as described in Advanced Bash Scripting Guide (ISBN 978-1435752184) allows privilege escalation and execution of commands when used in a shell script called, for example, via sudo.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.033 (87.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Tldp Advanced_bash-scripting_guide
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-9891?
- CVE-2019-9891 is a critical-severity vulnerability in Tldp Advanced Bash-Scripting Guide, classified under Code Injection. CVSS score: 9.8/10. Published 2019-05-31.
- How severe is CVE-2019-9891?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-9891 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.