Home/CVE/rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execut
CVE

CVE-2019-9924

rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execut

rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the permissions of the shell.

HIGH · CVSS 7.8 EPSS 0.00319
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules4 YARA rules0
⬡

Weakness Classification

CWE-862Missing Authorization
▤

Affected Products & Versions

7
gnu bash< 4.4
gnu bashall versions
debian linuxall versions
opensuse leapall versions
netapp hci management nodeall versions
netapp solidfireall versions
canonical ubuntu linuxall versions
◈

Sigma Hunt Rules

4
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.
productmediumInteractive Bash Suspicious Children
productmediumIndirect Command Execution From Script File Via Bash.EXE
productmediumIndirect Inline Command Execution Via Bash.EXE
productlowBash Interactive Shell
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
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 NVD22 Mar 2019 · 08:29 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

11
rhsaRHBA-2020:1540Moderate
rhsaRHBA-2020:1539Important
usnUSN-4058-2
usnUSN-4058-1
suse-csafSUSE-SU-2019:0838-2
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://git.savannah.gnu.org/cgit/bash.git/tree/CHANGES?h=bash-4.4-testing#n65Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00049.htmlMailing ListThird Party Advisory
https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1803441Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00028.htmlMailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20190411-0001/Third Party Advisory
https://usn.ubuntu.com/4058-1/Third Party Advisory
Intelligence Graph · click any node to traverse
CVETechnique ActorTool Family
drag to reposition · click any node to traverse · button top-right enlarges
External lookups - second-class, for what we don’t hold ourselves
NVDCVE.orgCISAVulnersExploit-DBGitHub PoCVulnCheck KEVGreyNoise
Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities
Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs
Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures
Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1
About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service
threatengine.sh  ·  Open-source threat intelligence platform  ·  100+ authoritative sources  ·  Every fact traces to its origin