CVE-2016-0634
bash: Arbitrary code execution via malicious hostname
Severity Score
7.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track*
*SSVC
Descriptions
The expansion of '\h' in the prompt string in bash 4.3 allows remote authenticated users to execute arbitrary code via shell metacharacters placed in 'hostname' of a machine.
La expansión de \h en la línea de comandos en bash 4.3 permite a los usuarios autenticados remotos ejecutar código arbitrario mediante metacaracteres shell ubicados en 'hostname' de la máquina.
An arbitrary command injection flaw was found in the way bash processed the hostname value. A malicious DHCP server could use this flaw to execute arbitrary commands on the DHCP client machines running bash under specific circumstances.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track*
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2015-12-09 CVE Reserved
- 2016-12-13 CVE Published
- 2023-08-08 EPSS Updated
- 2024-10-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC
References (16)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/09/16/12 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2016/09/18/11 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2016/09/19/7 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2016/09/20/1 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2016/09/27/9 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2016/09/29/27 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2016/10/07/6 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2016/10/10/3 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2016/10/10/4 | Mailing List |
|
| http://www.securityfocus.com/bid/92999 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/09/16/8 | 2018-01-05 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1377613 | 2017-08-01 |
| URL | Date | SRC |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2017-0725.html | 2018-01-05 | |
| https://access.redhat.com/errata/RHSA-2017:1931 | 2018-01-05 | |
| https://security.gentoo.org/glsa/201612-39 | 2018-01-05 | |
| https://access.redhat.com/security/cve/CVE-2016-0634 | 2017-08-01 |