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CVE-2009-3555

Published: Nov 9, 2009Updated: May 27, 2026 Sources: CVE List NVD GHSA BDU csafCWE-295
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
87.3%
Top 0.3%
CISA KEV
Not in KEV
Exploits
3 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-295CWE-300

Affected Products

http serverapache
On-premWeb App
Networking Infrastructure / load-balancer-proxy
gnutlsgnuOSS Libraries
nssmozillaConsumer Software
opensslopenssl
LibraryLibrary
OSS Libraries / generic-library
ubuntu linuxcanonical
On-premOS
Operating Systems / linux-distro
apacheoss-projectUSWeb & CMS Pluginsaka apache http server, apache httpd
gnuoss-projectUSOSS Librariesaka g. nu
mozillaoss-projectUSConsumer Softwareaka mozilla corp.
openssloss-projectUSOSS Librariesaka open ssl
canonicalcommercialGBOperating Systemsaka canonical ltd.
and 6 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

3 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

http://archives.neohapsis.com/archives/bugtraq/2013-11/0120.html
archives.neohapsis.com
http://blog.g-sec.lu/2009/11/tls-sslv3-renegotiation-vulnerability.html
blog.g-sec.lu
http://blogs.iss.net/archive/sslmitmiscsrf.html
blogs.iss.net
and 382 more references View all →

Timeline

Published
Nov 9, 2009
Last Updated
May 27, 2026

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