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AUSCERT Security Bulletin
ASB-2010.0221
A vulnerability has been identified in Bluecoat ProxySG
5 October 2010
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AusCERT Security Bulletin Summary
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Product: Bluecoat ProxySG prior to version 6.1
Operating System: Network Appliance
Impact/Access: Administrator Compromise -- Remote with User Interaction
Cross-site Scripting -- Remote with User Interaction
Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution: Patch/Upgrade
Member content until: Thursday, November 4 2010
OVERVIEW
A vulnerability has been identified in Bluecoat ProxySG prior to
version 6.1.
IMPACT
The vendor has provided the following details regarding this
vulnerability:
"ProxySG is vulnerable to reflected (non-persistent) cross site
scripting attacks. User provided data is not validated or
sanitized prior to including it in the HTML page returned to the
user. A remote attacker can exploit this vulnerability to inject
script that will execute CLI commands as the administrator. The
remote attacker must execute the script within the administrator's
browser while the administrator has an active session open with
ProxySG. Remote attackers will not be able to use stolen cookies on
a different machine." [1]
MITIGATION
The vendor recommends upgrading to the latest version of ProxySG. [1]
REFERENCES
[1] Cross Site Scripting vulnerability in ProxySG
https://kb.bluecoat.com/index?page=content&id=SA47
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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