CyberRota Analysis
AI-GeneratedQuicly, an implementation of the QUIC protocol used primarily in the H2O HTTP server, is vulnerable to stateless reset injection due to inadequate validation of packet entries, allowing an on-path attacker to reset QUIC connections. This vulnerability impacts the integrity of data transmission, making it crucial for organizations utilizing F5 products that rely on Quicly to prioritize patching and updating to the latest version. Users should ensure they implement the fix introduced in commit dccf5d4 to mitigate potential exploitation risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit dccf5d4, Quicly was vulnerable to stateless reset injection through lack of packet entry validation. The QUIC protocol is designed to withstand packet injection attacks, once the handshake is complete. Only packets that carry some secret patterns are considered as stateless resets. Quicly allows the peer to share up to 4 such patterns per connection. However, until now, it failed to determine which of the 4 slots that it uses to retain the secret patterns contains a valid entry. As the slots are zero-initialized, the failure meant that, unless the peer advertised 4 of such patterns, an all-zero pattern was treated as a stateless reset.In effect, this allowed an on-path attacker to reset QUIC connections governed by Quicly. This issue has been fixed by commit dccf5d4.
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