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CVE-2011-4317

medium · 4.3

The mod_proxy module in the Apache HTTP Server 1.3.x through 1.3.42, 2.0.x through 2.0.64, and 2.2.x through 2.2.21, 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 via a malformed URI containing an @ (at sign) character and a : (colon) character in invalid positions. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-3368.

4.3
CVSS
59.6%
EPSS (exploit prob.)
99th
EPSS percentile
2011-11-30
Published

AV:N/AC:M/Au:N/C:N/I:P/A:N

Weaknesses

CWE-20

Affected products

VendorProductAffected versions
apachehttp_server1.3
apachehttp_server1.3.0
apachehttp_server1.3.1
apachehttp_server1.3.1.1
apachehttp_server1.3.2
apachehttp_server1.3.3
apachehttp_server1.3.4
apachehttp_server1.3.5
apachehttp_server1.3.6
apachehttp_server1.3.7
apachehttp_server1.3.8
apachehttp_server1.3.9
apachehttp_server1.3.10
apachehttp_server1.3.11
apachehttp_server1.3.12
apachehttp_server1.3.13
apachehttp_server1.3.14
apachehttp_server1.3.15
apachehttp_server1.3.16
apachehttp_server1.3.17
apachehttp_server1.3.18
apachehttp_server1.3.19
apachehttp_server1.3.20
apachehttp_server1.3.22
apachehttp_server1.3.23
apachehttp_server1.3.24
apachehttp_server1.3.25
apachehttp_server1.3.26
apachehttp_server1.3.27
apachehttp_server1.3.28
apachehttp_server1.3.29
apachehttp_server1.3.30
apachehttp_server1.3.31
apachehttp_server1.3.32
apachehttp_server1.3.33
apachehttp_server1.3.34
apachehttp_server1.3.35
apachehttp_server1.3.36
apachehttp_server1.3.37
apachehttp_server1.3.38

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2011-4317