ESB-2018.1961 - [Virtual] TenableCore Web Application Scanner: Execute arbitrary code/commands - Remote/unauthenticated 2018-07-06

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1961
            TenableCore Web Application Scanner v20180702 Fixes
                        Third-party Vulnerabilities
                                6 July 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           TenableCore Web Application Scanner
Publisher:         Tenable
Operating System:  Virtualisation
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1111  

Reference:         ESB-2018.1492
                   ESB-2018.1490

Original Bulletin: 
   https://www.tenable.com/security/tns-2018-10

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[R1] TenableCore Web Application Scanner v20180702 Fixes Third-party
Vulnerabilities

Severity: High

Synopsis

The TenableCore Web Application Scanner Image v20180328 was found to contain a
command injection flaw in a script included in the bundled DHCP client
(dhclient) package.

A malicious DHCP server, or an attacker on the local network able to spoof DHCP
responses, could use this flaw to execute arbitrary commands with root
privileges on systems using NetworkManager which is configured to obtain
network configuration using the DHCP protocol.

Solution

Tenable has released an updated TenableCore WAS Image (v20180702) to address
this issue. The installation files can be obtained from the Tenable Downloads
Portal (https://www.tenable.com/downloads/tenable-io-was-scanner)

Additional References

https://access.redhat.com/security/vulnerabilities/3442151
https://nvd.nist.gov/vuln/detail/CVE-2018-1111

This page contains information regarding security vulnerabilities that may
impact Tenable's products. This may include issues specific to our software, or
due to the use of third-party libraries within our software. Tenable strongly
encourages users to ensure that they upgrade or apply relevant patches in a
timely manner.

Tenable takes product security very seriously. If you believe you have found a
vulnerability in one of our products, we ask that you please work with us to
quickly resolve it in order to protect customers. Tenable believes in
responding quickly to such reports, maintaining communication with researchers,
and providing a solution in short order.

For more details on submitting vulnerability information, please see our 
Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email 
[email protected]

Risk Information

CVE ID: CVE-2018-1111
Tenable Advisory ID: TNS-2018-10
Credit: Sameer Goyal
Risk Factor: High
CVSSv2 Base / Temporal Score: 7.9 / 6.5
CVSSv2 Vector: (AV:A/AC:M/Au:N/C:C/I:C/A:C/E:F/RL:OF/RC:C)

Affected Products

TenableCore WAS v20180328

Disclosure Timeline

2018-05-31 - Issue reported to Tenable by Sameer Goyal
2018-06-01 - Issue confirmed by Tenable
2018-07-03 - Updated CoreOS image publically available

Advisory Timeline

2018-07-05 - [R1] Initial Release

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