Alert Details

Computer Network Defence Alert State

 

Radar Page

The Computer Network Defence Alert State is designed to give a granular and more dynamic visualisation of the current security threat.  Increase in alert state will occur immediately upon detection of a new threat and drop again by one level each working day.  The rationale is that vulnerabilities often occur in clusters, therefore reducing the alert state again quickly, will increase your visibility of new threats to the same product.  It is important that the radar page is viewed at least daily in order to track these changes. Reductions in alert state occur at approximately 1900 GMT/UTC. Significant vulnerabilities may remain for longer. Vulnerabilities on this page are predominantly remotely executable, very few local server exploits will be shown.

 

 

Current Alerts

AlertTitleF5

Memory leak in libpng can allow an attacker to cause a denial-of-service (DoS) attack.

More info.

 

A different vulnerability in libpng can allow an attacker to cause a denial-of-service (DoS) attack or inject malicious code.  More info.

 

Wireshark has issues.  More info.

AlertTitleCisco

A vulnerability in the SSL VPN feature of Cisco ASA Software could allow an unauthenticated, remote attacker to cause the exhaustion of available memory, which could lead to system instability and availability issues on the SSL VPN services.

More info.

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AlertTitleAdobe
AlertArrowDown2

Apparently the last Flash patch needs a bit of tweaking...

More info.

AlertTitleSCADA

An unhandled C++ exception has been identified in the MatrikonOPC DNP3 application. MatrikonOPC has produced a new version that mitigates this vulnerability.

More info.

 

Siemens has identified two vulnerabilities within products utilizing the Siemens WinCC application. Siemens has produced a patch that mitigates this vulnerability in the WinCC application and is working on updates for the remaining affected products to address the other vulnerability in the WinCC application.

More info.

AlertTitleF5
Multiple cross-site scripting (XSS) vulnerabilities in the Apache HTTP Server that allow an attacker may be able to inject arbitrary web script or HTML.

More info.

 

libxml2 vulnerabilities allow an attacker to cause a denial-of-service (DoS) attack.

More info.

 

Multiple integer overflows in LibTIFF allow remote attackers to execute arbitrary code.

More info.

 

cURL and  libcurl vulnerabilities may allow unauthorized disclosure of information and unauthorized modification

More info.

AlertTitleCisco

A vulnerability in the lighttpd module of Cisco IOS XR could allow an unauthenticated, remote attacker to cause a reload of the affected lighttpd process.

More info.

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Alert Definitions

NORMAL This alert state represents the normal level of security with minimal activity relating to the product.  The next stage above this level is 2, however falling alerts will go through 1 when returning to normal.

LOW This alert state indicates that an alert has been recognised for this product within the last few days but it is now returning to normal.  Inclusion of this level is for viewers that don't monitor this alert system regularly.

INCREASED This alert state indicates a need to increase the security posture due to an emerging threat for which there is currently no exploit, or you are witnessing the reduction in alert state after being at level 3 for more than 1 working day.

HIGH This alert state indicates a significant threat to the product, where exploits exist or where the vulnerability is potentially devastating.

PATCHES This alert state indicates that patches are available for vulnerabilities that had previously resulted in a need for the alert state to increase and subsequently fall. The level of 2 or 3 indicates the urgency to patch.

EXPLOIT This alert state indicates that exploit code is available for vulnerabilities that had previously resulted in a need for the alert state to increase and subsequently fall. The level of 2 or 3 indicates the threat of the exploit.

AlertNumberZ3

ZERO This alert state indicates that a vulnerability has been announced without the opportunity for the vendor to patch it before the details are made known.  These can be especially dangerous if exploit code is available. The level of 2 or 3 indicates the threat of the vulnerability.

 

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Useful Links

 

These are links our analysts and radar page patrons find useful.  If you would like to suggest a link for this section, please send your suggestions to This email address is being protected from spambots. You need JavaScript enabled to view it.

 

http://isc.sans.edu/
http://www.us-cert.gov/
http://www.auscert.org.au/
http://cve.mitre.org/
http://atlas.arbor.net/

http://www.cert.org/advisories/
http://secunia.com/Advisories
http://www.vupen.com/english/security-advisories/
http://www.securityfocus.com/vulnerabilities
http://www.coresecurity.com/content/corelabs-advisories

http://www.iss.net/threats/ThreatList.php
http://www.sourcefire.com/security-technologies/snort/vulnerability-research-team/advisories

 

Any other comments on our site or the Radar Page are welcome as well!

http://www.ubuntu.com/usn/usn-1215-1/