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HistoryNov 30, 2011 - 4:05 a.m.
CVE-2011-3639
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
8.8 High
AI Score
Confidence
High
0.974 High
EPSS
Percentile
99.9%
The mod_proxy module in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x before 2.2.18, when the Revision 1179239 patch is in place, does not properly interact with use of (1) RewriteRule and (2) ProxyPassMatch pattern matches for configuration of a reverse proxy, which allows remote attackers to send requests to intranet servers by using the HTTP/0.9 protocol with a malformed URI containing an initial @ (at sign) character. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-3368.
Affected configurations
Node
apachehttp_serverMatch2.0.11
ORapachehttp_serverMatch2.0.12
ORapachehttp_serverMatch2.0.13
ORapachehttp_serverMatch2.0.14
ORapachehttp_serverMatch2.0.15
ORapachehttp_serverMatch2.0.16
ORapachehttp_serverMatch2.0.17
ORapachehttp_serverMatch2.0.18
ORapachehttp_serverMatch2.0.19
ORapachehttp_serverMatch2.0.20
ORapachehttp_serverMatch2.0.21
ORapachehttp_serverMatch2.0.22
ORapachehttp_serverMatch2.0.23
ORapachehttp_serverMatch2.0.24
ORapachehttp_serverMatch2.0.25
ORapachehttp_serverMatch2.0.26
ORapachehttp_serverMatch2.0.27
ORapachehttp_serverMatch2.0.28
ORapachehttp_serverMatch2.0.29
ORapachehttp_serverMatch2.0.30
ORapachehttp_serverMatch2.0.31
ORapachehttp_serverMatch2.0.32
ORapachehttp_serverMatch2.0.33
ORapachehttp_serverMatch2.0.34
ORapachehttp_serverMatch2.0.35
ORapachehttp_serverMatch2.0.36
ORapachehttp_serverMatch2.0.37
ORapachehttp_serverMatch2.0.38
ORapachehttp_serverMatch2.0.39
ORapachehttp_serverMatch2.0.40
ORapachehttp_serverMatch2.0.41
ORapachehttp_serverMatch2.0.42
ORapachehttp_serverMatch2.0.43
ORapachehttp_serverMatch2.0.44
ORapachehttp_serverMatch2.0.45
ORapachehttp_serverMatch2.0.46
ORapachehttp_serverMatch2.0.47
ORapachehttp_serverMatch2.0.48
ORapachehttp_serverMatch2.0.49
ORapachehttp_serverMatch2.0.50
ORapachehttp_serverMatch2.0.51
ORapachehttp_serverMatch2.0.52
ORapachehttp_serverMatch2.0.53
ORapachehttp_serverMatch2.0.54
ORapachehttp_serverMatch2.0.55
ORapachehttp_serverMatch2.0.56
ORapachehttp_serverMatch2.0.57
ORapachehttp_serverMatch2.0.58
ORapachehttp_serverMatch2.0.59
ORapachehttp_serverMatch2.0.61
ORapachehttp_serverMatch2.0.63
ORapachehttp_serverMatch2.2.0
ORapachehttp_serverMatch2.2.1
ORapachehttp_serverMatch2.2.2
ORapachehttp_serverMatch2.2.3
ORapachehttp_serverMatch2.2.4
ORapachehttp_serverMatch2.2.6
ORapachehttp_serverMatch2.2.8
ORapachehttp_serverMatch2.2.9
ORapachehttp_serverMatch2.2.10
ORapachehttp_serverMatch2.2.11
ORapachehttp_serverMatch2.2.12
ORapachehttp_serverMatch2.2.13
ORapachehttp_serverMatch2.2.14
ORapachehttp_serverMatch2.2.15
ORapachehttp_serverMatch2.2.16
ORapachehttp_serverMatch2.2.17
ORapachehttp_server2.0a1
ORapachehttp_server2.0a2
ORapachehttp_server2.0a3
ORapachehttp_server2.0a4
ORapachehttp_server2.0a5
ORapachehttp_server2.0a6
ORapachehttp_server2.0a7
ORapachehttp_server2.0a8
ORapachehttp_server2.0a9
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4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
8.8 High
AI Score
Confidence
High
0.974 High
EPSS
Percentile
99.9%
Related for NVD:CVE-2011-3639