Mozilla Network Security Services TLS State Machine Weak Encryption Vulnerability (CVE-2015-2721)
Severity: CRITICAL
Advisory Date: JUN 09, 2016
DESCRIPTION
Mozilla Network Security Services (NSS) before 3.19, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, Thunderbird before 38.1, and other products, does not properly determine state transitions for the TLS state machine, which allows man-in-the-middle attackers to defeat cryptographic protection mechanisms by blocking messages, as demonstrated by removing a forward-secrecy property by blocking a ServerKeyExchange message, aka a "SMACK SKIP-TLS" issue.
TREND MICRO PROTECTION INFORMATION
Apply associated Trend Micro DPI Rules.
SOLUTION
Trend Micro Deep Security DPI Rule Number: 1006546
Featured Stories
The Mirage of AI Programming: Hallucinations and Code IntegrityThe adoption of large language models (LLMs) and Generative Pre-trained Transformers (GPTs), such as ChatGPT, by leading firms like Microsoft, Nuance, Mix and Google CCAI Insights, drives the industry towards a series of transformative changes. As the use of these new technologies becomes prevalent, it is important to understand their key behavior, advantages, and the risks they present.Read more
Open RAN: Attack of the xAppsThis article discusses two O-RAN vulnerabilities that attackers can exploit. One vulnerability stems from insufficient access control, and the other arises from faulty message handlingRead more
A Closer Exploration of Residential Proxies and CAPTCHA-Breaking ServicesThis article, the final part of a two-part series, focuses on the details of our technical findings and analyses of select residential proxies and CAPTCHA-solving services.Read more
How Residential Proxies and CAPTCHA-Solving Services Become Agents of AbuseThis article, the first of a two-part series, provides insights on how abusers and cybercriminals use residential proxies and CAPTCHA-solving services to enable bots, scrapers, and stuffers, and proposes security countermeasures for organizations.Read more