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CVE-2023-48795, known as Terrapin, is an integrity-validation weakness in the SSH Binary Packet Protocol handshake. A machine-in-the-middle attacker can inject packets during the unauthenticated portion of the handshake to manipulate packet sequence numbers, then remove a prefix of early encrypted packets without detection. This can strip the SSH extension-information message and cause endpoints to negotiate a session with security features, extensions, or countermeasures downgraded or disabled. The practical attack affects SSH implementations using the ChaCha20-Poly1305 algorithm and, when a CBC cipher is negotiated, Encrypt-then-MAC algorithms. OpenSSH before 9.6 and numerous third-party SSH clients, servers, and libraries are affected, including Apache MINA sshd versions through 2.11.0.
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No valid public exploits. Mallory filtered out 6 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.
95 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability affecting Palo Alto Networks PAN-OS. The supplied CVSS v3 vector indicates a network-reachable integrity-impact flaw with high attack complexity and no privileges required; CVSS v4 indicates user interaction is required.
A named OpenSSH vulnerability (Terrapin) cited as one of multiple unpatched issues affecting the exposed OpenSSH 8.0 service on the Romanian host.
An OpenSSH Terrapin prefix truncation integrity bypass vulnerability listed among the known CVEs exposed by the compromised Spanish server.
OpenSSH transport-protocol weakness (pre-9.6, with certain extensions) allowing integrity-check bypass and downgrade of security features (Terrapin); Aruba upgraded OpenSSH to mitigate.
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.