Top Story
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2022-3786 +1 in the same advisory: …3602 | A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.' character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. NVD description · AI analysis pending | 7.5 | 92% |
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Full article200 words · extracted from blog.talosintelligence.com · click to collapse
June 13, 2023 08:03
".Zip" top-level domains draw potential for information leaks
As a result of user applications increasingly registering actual “.zip” files as URLs, these filenames may trigger unintended DNS queries or web requests, thereby revealing possibly sensitive or internal company data in a file’s name to any actor monitoring the associated DNS server
February 9, 2023 08:09
Beyond the basics: Implementing an active defense
An active defense posture, where the defenders actively use threat intelligence and their own telemetry to uncover potential compromises, is the next stage in the cyber security maturity road. Instead of waiting for detections to trigger, defenders can take initiative and hunt threat actors.
January 24, 2023 07:59
State Sponsored Attacks in 2023 and Beyond
As 2023 begins I wanted to look forward on the future of state sponsored aggression and how we can see it change and evolve over the next year and beyond.
November 1, 2022 15:03
Threat Advisory: High Severity OpenSSL Vulnerabilities
In late October two new buffer overflow vulnerabilities, CVE-2022-3602 and CVE-2022-3786, were announced in OpenSSL versions 3.0.0 to 3.0.6. These vulnerabilities can be exploited by sending an X.509 certificate with a specially crafted email address, potentially causing a buffer
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