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CVE-2009-3555 is a design flaw in SSL 3.0 and TLS renegotiation, also known as Project Mogul. Pre-RFC 5746 renegotiation handshakes are not cryptographically bound to the pre-renegotiation connection. A man-in-the-middle can establish a separate connection to a vulnerable server, send attacker-selected unauthenticated application data, and splice the victim's handshake into a renegotiation. The server can then interpret the attacker-supplied prefix as having been sent in the victim's authenticated post-renegotiation session. Affected implementations included older releases of OpenSSL, Apache mod_ssl, Microsoft IIS, GnuTLS, NSS, Cisco products, and other SSL/TLS implementations.
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No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
OpenSSL insecure SSL/TLS renegotiation vulnerability addressed by RFC 5746.
A TLS/SSL renegotiation authentication-binding flaw that permits a man-in-the-middle attacker to prefix or inject attacker-controlled plaintext into a protected session, including HTTPS, by exploiting the failure to associate the initial and renegotiated handshakes. Also known as the Project Mogul issue.
TLS renegotiation man-in-the-middle vulnerability; Tomcat exposure depends on the connector's JSSE or OpenSSL implementation.
A TLS renegotiation prefix attack vulnerability addressed by secure renegotiation (RFC 5746); unpatched clients or servers remain exposed if unsafe legacy renegotiation is allowed.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.