CVE-2019-9924
bash: BASH_CMD is writable in restricted bash shells
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
rbash en Bash
USN-4058-1 fixed a vulnerability in bash. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. It was discovered that Bash incorrectly handled the restricted shell. An attacker could possibly use this issue to escape restrictions and execute any command. Various other issues were also addressed.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-03-22 CVE Reserved
- 2019-03-22 CVE Published
- 2024-08-04 CVE Updated
- 2025-07-13 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-138: Improper Neutralization of Special Elements
- CWE-862: Missing Authorization
CAPEC
References (9)
| URL | Tag | Source |
|---|---|---|
| https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1803441 | Issue Tracking | |
| https://lists.debian.org/debian-lts-announce/2019/03/msg00028.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20190411-0001 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://git.savannah.gnu.org/cgit/bash.git/tree/CHANGES?h=bash-4.4-testing#n65 | 2022-04-05 | |
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00049.html | 2022-04-05 | |
| https://usn.ubuntu.com/4058-1 | 2022-04-05 | |
| https://usn.ubuntu.com/4058-2 | 2022-04-05 | |
| https://access.redhat.com/security/cve/CVE-2019-9924 | 2020-09-22 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1691774 | 2020-09-22 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Gnu Search vendor "Gnu" | Bash Search vendor "Gnu" for product "Bash" | < 4.4 Search vendor "Gnu" for product "Bash" and version " < 4.4" | - |
Affected
| ||||||
| Gnu Search vendor "Gnu" | Bash Search vendor "Gnu" for product "Bash" | 4.4 Search vendor "Gnu" for product "Bash" and version "4.4" | beta1 |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 42.3 Search vendor "Opensuse" for product "Leap" and version "42.3" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Hci Management Node Search vendor "Netapp" for product "Hci Management Node" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Solidfire Search vendor "Netapp" for product "Solidfire" | - | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | esm |
Affected
| ||||||