===============================ADVISORY=============================== Systems Affected: Avaya Aura AES (Application Enablement Services) 4.x.x Severity: Medium Category: Authorisation Bypass Author: Context Information Security Ltd Reported to vendor: 9th September 2010 Advisory Issued: 6th January 2011 ===============================ADVISORY=============================== Description ----------- The Avaya AES application suffers from an authorisation bypass vulnerability that allows a low level user to execute administrative functions. Analysis -------- A flaw in the authorisation function validating whether a user is permitted to execute a desired function, allows low level users to execute some administrative functions leading to an authorisation bypass and privilege escalation vulnerability. Technologies Affected ------------------------------ Avaya Aura™ Application Enablement Services (4.x.x) Vendor Response ----------------------- https://support.avaya.com/css/P8/documents/100121813 Disclosure Timeline -------------------------- 9th September 2010 – Vendor Disclosure 10th December 2010 – Vendor Releases Advisory Credits --------- Ben Heinkel of Context Information Security Ltd About Context Information Security ---------------------------------- Context Information Security is an independent security consultancy specialising in both technical security and information assurance services The company was founded in 1998. Its client base has grown steadily over the years, thanks in large part to personal recommendations from existing clients who value us as business partners. We believe our success is based on the value our clients place on our product-agnostic, holistic approach; the way we work closely with them to develop a tailored service; and to the independence, integrity and technical skills of our consultants. The company’s client base now includes some of the most prestigious blue chip companies in the world, as well as government organisations. The best security experts need to bring a broad portfolio of skills to the job, so Context has always sought to recruit staff with extensive business experience as well as technical expertise. Our aim is to provide effective and practical solutions, advice and support: when we report back to clients we always communicate our findings and recommendations in plain terms at a business level as well as in the form of an in-depth technical report. Web: www.contextis.co.uk Email: disclosure@contextis.co.uk _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/