Vulnerability Name:

CVE-1999-0491 (CCN-3531)

Assigned:1999-04-20
Published:1999-04-20
Updated:2014-12-31
Summary:The prompt parsing in bash allows a local user to execute commands as another user by creating a directory with the name of the command to execute.
CVSS v3 Severity:5.9 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-94
Vulnerability Consequences:Gain Access
References:Source: CCN
Type: Caldera International, Inc. Security Advisory CSSA-1999-008.0
bash

Source: CALDERA
Type: Patch, Vendor Advisory
CSSA-1999-008.0

Source: CCN
Type: GNU FTP site
Bash Software Download

Source: CCN
Type: BugTraq Mailing List, Fri, 13 Sep 1996 09:03:00 -0500
tee see shell problems

Source: CCN
Type: BugTraq Mailing List, Thu, 19 Sep 1996 20:52:26 +0200
Vulnerability in expansion of PS1 in bash & tcsh

Source: CCN
Type: BugTraq Mailing List, Tue, 20 Apr 1999 21:25:47 -0400
Bash Bug

Source: MITRE
Type: CNA
CVE-1999-0491

Source: MITRE
Type: CNA
CVE-1999-1383

Source: CCN
Type: OSVDB ID: 8225
Multiple Shell PS1 Variable Arbitrary Command Execution

Source: CCN
Type: OSVDB ID: 907
bash Prompt Parsing Malformed Directory Command Execution

Source: BID
Type: UNKNOWN
119

Source: CCN
Type: BID-119
Bash Path Embedded Code Execution Vulnerability

Source: BUGTRAQ
Type: UNKNOWN
19990420 Bash Bug

Source: XF
Type: UNKNOWN
bash-prompt-pars-dir(3531)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:gnu:bash:1.14.0:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:1.14.1:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:1.14.2:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:1.14.3:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:1.14.4:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:1.14.5:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:1.14.6:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:1.14.7:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:2.0:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:2.01:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:2.01.1:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:2.02:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:2.02.1:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:2.03:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:*:*:*:*:*:*:*:* (Version <= 2.04)
  • OR cpe:/a:gnu:bash:2.05:*:*:*:*:*:*:*
  • OR cpe:/a:gnu:bash:2.05:a:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:gnu:bash:*:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    gnu bash 1.14.0
    gnu bash 1.14.1
    gnu bash 1.14.2
    gnu bash 1.14.3
    gnu bash 1.14.4
    gnu bash 1.14.5
    gnu bash 1.14.6
    gnu bash 1.14.7
    gnu bash 2.0
    gnu bash 2.01
    gnu bash 2.01.1
    gnu bash 2.02
    gnu bash 2.02.1
    gnu bash 2.03
    gnu bash *
    gnu bash 2.05
    gnu bash 2.05 a
    gnu bash *