Oracle Solaris Third-Party Patch Update : bash (multiple_vulnerabilities_in_bash1) (Shellshock)

This script is Copyright (C) 2016 Tenable Network Security, Inc.


Synopsis :

The remote Solaris system is missing a security patch for third-party
software.

Description :

The remote Solaris system is missing necessary patches to address
security updates :

- GNU Bash through 4.3 processes trailing strings after
function definitions in the values of environment
variables, which allows remote attackers to execute
arbitrary code via a crafted environment, as
demonstrated by vectors involving the ForceCommand
feature in OpenSSH sshd, the mod_cgi and mod_cgid
modules in the Apache HTTP Server, scripts executed by
unspecified DHCP clients, and other situations in which
setting the environment occurs across a privilege
boundary from Bash execution, aka 'ShellShock.' NOTE:
the original fix for this issue was incorrect;
CVE-2014-7169 has been assigned to cover the
vulnerability that is still present after the incorrect
fix. (CVE-2014-6271)

- GNU Bash through 4.3 bash43-026 does not properly parse
function definitions in the values of environment
variables, which allows remote attackers to execute
arbitrary code or cause a denial of service
(uninitialized memory access, and untrusted-pointer read
and write operations) via a crafted environment, as
demonstrated by vectors involving the ForceCommand
feature in OpenSSH sshd, the mod_cgi and mod_cgid
modules in the Apache HTTP Server, scripts executed by
unspecified DHCP clients, and other situations in which
setting the environment occurs across a privilege
boundary from Bash execution. NOTE: this vulnerability
exists because of an incomplete fix for CVE-2014-6271
and CVE-2014-7169. (CVE-2014-6277)

- GNU Bash through 4.3 bash43-026 does not properly parse
function definitions in the values of environment
variables, which allows remote attackers to execute
arbitrary commands via a crafted environment, as
demonstrated by vectors involving the ForceCommand
feature in OpenSSH sshd, the mod_cgi and mod_cgid
modules in the Apache HTTP Server, scripts executed by
unspecified DHCP clients, and other situations in which
setting the environment occurs across a privilege
boundary from Bash execution. NOTE: this vulnerability
exists because of an incomplete fix for CVE-2014-6271,
CVE-2014-7169, and CVE-2014-6277. (CVE-2014-6278)

- GNU Bash through 4.3 bash43-025 processes trailing
strings after certain malformed function definitions in
the values of environment variables, which allows remote
attackers to write to files or possibly have unknown
other impact via a crafted environment, as demonstrated
by vectors involving the ForceCommand feature in OpenSSH
sshd, the mod_cgi and mod_cgid modules in the Apache
HTTP Server, scripts executed by unspecified DHCP
clients, and other situations in which setting the
environment occurs across a privilege boundary from Bash
execution. NOTE: this vulnerability exists because of an
incomplete fix for CVE-2014-6271. (CVE-2014-7169)

- The redirection implementation in parse.y in GNU Bash
through 4.3 bash43-026 allows remote attackers to cause
a denial of service (out-of-bounds array access and
application crash) or possibly have unspecified other
impact via crafted use of here documents, aka the
'redir_stack' issue. (CVE-2014-7186)

- Off-by-one error in the read_token_word function in
parse.y in GNU Bash through 4.3 bash43-026 allows remote
attackers to cause a denial of service (out-of-bounds
array access and application crash) or possibly have
unspecified other impact via deeply nested for loops,
aka the 'word_lineno' issue. (CVE-2014-7187)

See also :

http://www.nessus.org/u?b5f8def1
http://www.nessus.org/u?635a416d

Solution :

Upgrade to Solaris 11.2.5.5.0.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
Public Exploit Available : true

Family: Solaris Local Security Checks

Nessus Plugin ID: 88514 ()

Bugtraq ID:

CVE ID: CVE-2014-6271
CVE-2014-6277
CVE-2014-6278
CVE-2014-7169
CVE-2014-7186
CVE-2014-7187

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