CVE-2009-3555
mediumCVSS v3 Base Score
5.8
AV:N/AC:M/Au:N/C:N/I:P/A:P
EPSS Score
2.0%
Exploitation probability in 30 days
Top 16% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
M
Confidentiality
None
Integrity
P
Availability
P
Published: November 9, 2009 (6030 days ago)
Last Modified: April 23, 2026
Vendor: Apache
Source: NVD
Vulnerability Report
Generated by CyberWatcher
Description
The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft Internet Information Services (IIS) 7.0, mod_ssl in the Apache HTTP Server 2.2.14 and earlier, OpenSSL before 0.9.8l, GnuTLS 2.8.5 and earlier, Mozilla Network Security Services (NSS) 3.12.4 and earlier, multiple Cisco products, and other products, does not properly associate renegotiation handshakes with an existing connection, which allows man-in-the-middle attackers to insert data into HTTPS sessions, and possibly other types of sessions protected by TLS or SSL, by sending an unauthenticated request that is processed retroactively by a server in a post-renegotiation context, related to a "plaintext injection" attack, aka the "Project Mogul" issue.
CWE
CWE-295Affected Products
apache http servergnu gnutlsmozilla nssopenssl opensslcanonical ubuntu linuxdebian debian linuxfedoraproject fedoraf5 nginx