CVE-2026-82644: WWBN AVideo, логическа грешка

Описание

Оригинално описание

WWBN AVideo (current e01e41ecc and earlier) contains a brute-force rate limiting bypass in enforceRateLimit(), which protects login.json.php and 13 other endpoints. The function stores its attempt counter via a cache layer (ObjectYPT::setCacheGlobal) that silently discards writes for any client identified as a bot by isBot(). Because isBot() treats a missing User-Agent header as a bot by default — and also matches common bot identifiers such as 'curl', 'bot', 'crawler', and 'spider' — the counter never increments for such clients, so the rate limit never fires. An unauthenticated attacker can therefore submit unlimited login attempts (e.g., by omitting the User-Agent header or using curl's default User-Agent), enabling unrestricted password-guessing attacks.

Засегнати продукти

• WWBN AVideo

Вид слабост

• CWE-307 Неправилно ограничаване на прекомерни опити за автентикация

История

Други уязвимости в WWBN AVideo

• 6.9CVE-2026-116800
• 5.4CVE-2026-116139
• 5.3CVE-2026-114634
• 7.0CVE-2026-114633
• 5.1CVE-2026-114048

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-82644
• https://nvd.nist.gov/vuln/detail/CVE-2026-82644
• https://github.com/WWBN/AVideo/security/advisories/GHSA-6893-mcgv-9p2x
• https://www.vulncheck.com/advisories/wwbn-avideo-brute-force-rate-limiting-bypass-via-missing-user-agent