Canonical URL:

https://www.rfc-editor.org/rfc/rfc5746.txt

File formats:

Status:

PROPOSED STANDARD

Updates:

RFC 5246, RFC 4366, RFC 4347, RFC 4346, RFC 2246

Authors:

E. Rescorla
M. Ray
S. Dispensa
N. Oskov

Stream:

IETF

Source:

tls (sec)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC5746

Discuss this RFC: Send questions or comments to tls@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF

Abstract

Secure Socket Layer (SSL) and Transport Layer Security (TLS) renegotiation are vulnerable to an attack in which the attacker forms a TLS connection with the target server, injects content of his choice, and then splices in a new TLS connection from a client. The server treats the client's initial TLS handshake as a renegotiation and thus believes that the initial data transmitted by the attacker is from the same entity as the subsequent client data. This specification defines a TLS extension to cryptographically tie renegotiations to the TLS connections they are being performed over, thus preventing this attack. [STANDARDS-TRACK]

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.

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