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AUSCERT External Security Bulletin Redistribution
ESB-2018.2016
Cisco FireSIGHT System Software File Policy Bypass Vulnerability
12 July 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco FireSIGHT System Software
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0383
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-firesight-file-bypass
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-firesight-url-bypass
Comment: This bulletin contains two (2) Cisco Systems security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco FireSIGHT System Software File Policy Bypass Vulnerability
Severity: Medium
Advisory ID: cisco-sa-20180711-firesight-file-bypass
First Published: 2018 July 11 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvh70130
CVE-2018-0383
CVSS Score: Base 5.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N/E:X/RL:X/RC:X
Summary
* A vulnerability in the detection engine of Cisco FireSIGHT System Software
could allow an unauthenticated, remote attacker to bypass a file policy
that is configured to block the transfer of files to an affected system via
FTP.
The vulnerability exists because the affected software incorrectly handles
FTP control connections. An attacker could exploit this vulnerability by
sending a maliciously crafted FTP connection to transfer a file to an
affected device. A successful exploit could allow the attacker to bypass a
file policy that is configured to apply the Block upload with reset action
to FTP traffic.
There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20180711-firesight-file-bypass
Affected Products
* Vulnerable Products
This vulnerability affects Cisco FireSIGHT System Software. For information
about affected software releases, consult the Cisco bug ID(s) at the top of
this advisory.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Workarounds
* There are no workarounds that address this vulnerability.
Fixed Software
* For information about fixed software releases, consult the Cisco bug ID(s)
at the top of this advisory.
When considering software upgrades, customers are advised to regularly
consult the advisories for Cisco products, which are available from the
Cisco Security Advisories and Alerts page, to determine exposure and a
complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded
contain sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release.
If the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance
providers.
Exploitation and Public Announcements
* The Cisco Product Security Incident Response Team (PSIRT) is not aware of
any public announcements or malicious use of the vulnerability that is
described in this advisory.
Source
* This vulnerability was found during internal security testing.
URL
* https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20180711-firesight-file-bypass
Revision History
*
+-----------------------------------------------------------------------------+
| Version | Description | Section | Status | Date |
|----------+----------------------------+----------+---------+----------------|
| 1.0 | Initial public release. | ? | Final | 2018-July-11 |
+-----------------------------------------------------------------------------+
- --------------------------------------------------------------------------------
Cisco FireSIGHT System Software URL-Based Access Control Policy Bypass
Vulnerability
Severity: Medium
Advisory ID: cisco-sa-20180711-firesight-url-bypass
First Published: 2018 July 11 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvh84511
CVE-2018-0384
CVSS Score: Base 5.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N/E:X/RL:X/RC:X
Summary
*
A vulnerability in the detection engine of Cisco FireSIGHT System Software
could allow an unauthenticated, remote attacker to bypass a URL-based
access control policy that is configured to block traffic for an affected
system.
The vulnerability exists because the affected software incorrectly handles
TCP packets that are received out of order when a TCP SYN retransmission is
issued. An attacker could exploit this vulnerability by sending a
maliciously crafted connection through an affected device. A successful
exploit could allow the attacker to bypass a URL-based access control
policy that is configured to block traffic for the affected system.
There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20180711-firesight-url-bypass
Affected Products
* Vulnerable Products
This vulnerability affects Cisco FireSIGHT System Software. For information
about affected software releases, consult the Cisco bug ID(s) at the top of
this advisory.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Workarounds
* There are no workarounds that address this vulnerability.
Fixed Software
* For information about fixed software releases, consult the Cisco bug ID(s)
at the top of this advisory.
When considering software upgrades, customers are advised to regularly
consult the advisories for Cisco products, which are available from the
Cisco Security Advisories and Alerts page, to determine exposure and a
complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded
contain sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release.
If the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance
providers.
Exploitation and Public Announcements
* The Cisco Product Security Incident Response Team (PSIRT) is not aware of
any public announcements or malicious use of the vulnerability that is
described in this advisory.
Source
* This vulnerability was found during internal security testing.
URL
* https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20180711-firesight-url-bypass
Revision History
*
+-----------------------------------------------------------------------------+
| Version | Description | Section | Status | Date |
|----------+----------------------------+----------+---------+----------------|
| 1.0 | Initial public release. | ? | Final | 2018-July-11 |
+-----------------------------------------------------------------------------+
- --------------------------END INCLUDED TEXT--------------------
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