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fail2ban/0001-BF-apache-filters-usin...

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From 284f811c912af2f683c7eb150011337912516934 Mon Sep 17 00:00:00 2001
From: Daniel Black <grooverdan@users.sourceforge.net>
Date: Tue, 19 Nov 2013 10:27:55 +1100
Subject: [PATCH] BF: apache filters using error log weren't matched when
referer existed in HTTP header
---
config/filter.d/apache-auth.conf | 26 ++++++++++++++------------
config/filter.d/apache-noscript.conf | 4 ++--
config/filter.d/apache-overflows.conf | 2 +-
testcases/files/logs/apache-auth | 3 +++
6 files changed, 22 insertions(+), 15 deletions(-)
diff --git a/config/filter.d/apache-auth.conf b/config/filter.d/apache-auth.conf
index 3df91c1..f421348 100644
--- a/config/filter.d/apache-auth.conf
+++ b/config/filter.d/apache-auth.conf
@@ -10,19 +10,19 @@ before = apache-common.conf
[Definition]
-failregex = ^%(_apache_error_client)s (AH01797: )?client denied by server configuration: (uri )?\S*\s*$
- ^%(_apache_error_client)s (AH01617: )?user .* authentication failure for "\S*": Password Mismatch$
- ^%(_apache_error_client)s (AH01618: )?user .* not found(: )?\S*\s*$
- ^%(_apache_error_client)s (AH01614: )?client used wrong authentication scheme: \S*\s*$
+failregex = ^%(_apache_error_client)s (AH01797: )?client denied by server configuration: (uri )?\S*(, referer: \S+)?\s*$
+ ^%(_apache_error_client)s (AH01617: )?user .*? authentication failure for "\S*": Password Mismatch(, referer: \S+)?$
+ ^%(_apache_error_client)s (AH01618: )?user .*? not found(: )?\S*(, referer: \S+)?\s*$
+ ^%(_apache_error_client)s (AH01614: )?client used wrong authentication scheme: \S*(, referer: \S+)?\s*$
^%(_apache_error_client)s (AH\d+: )?Authorization of user \S+ to access \S* failed, reason: .*$
- ^%(_apache_error_client)s (AH0179[24]: )?(Digest: )?user .*: password mismatch: \S*\s*$
- ^%(_apache_error_client)s (AH0179[01]: |Digest: )user `.*' in realm `.+' (not found|denied by provider): \S*\s*$
- ^%(_apache_error_client)s (AH01631: )?user .*: authorization failure for "\S*":\s*$
- ^%(_apache_error_client)s (AH01775: )?(Digest: )?invalid nonce .* received - length is not \S+\s*$
- ^%(_apache_error_client)s (AH01788: )?(Digest: )?realm mismatch - got `.*' but expected `.+'\s*$
- ^%(_apache_error_client)s (AH01789: )?(Digest: )?unknown algorithm `.*' received: \S*\s*$
- ^%(_apache_error_client)s (AH01793: )?invalid qop `.*' received: \S*\s*$
- ^%(_apache_error_client)s (AH01777: )?(Digest: )?invalid nonce .* received - user attempted time travel\s*$
+ ^%(_apache_error_client)s (AH0179[24]: )?(Digest: )?user .*?: password mismatch: \S*(, referer: \S+)?\s*$
+ ^%(_apache_error_client)s (AH0179[01]: |Digest: )user `.*?' in realm `.+' (not found|denied by provider): \S*(, referer: \S+)?\s*$
+ ^%(_apache_error_client)s (AH01631: )?user .*?: authorization failure for "\S*":(, referer: \S+)?\s*$
+ ^%(_apache_error_client)s (AH01775: )?(Digest: )?invalid nonce .* received - length is not \S+(, referer: \S+)?\s*$
+ ^%(_apache_error_client)s (AH01788: )?(Digest: )?realm mismatch - got `.*?' but expected `.+'(, referer: \S+)?\s*$
+ ^%(_apache_error_client)s (AH01789: )?(Digest: )?unknown algorithm `.*?' received: \S*(, referer: \S+)?\s*$
+ ^%(_apache_error_client)s (AH01793: )?invalid qop `.*?' received: \S*(, referer: \S+)?\s*$
+ ^%(_apache_error_client)s (AH01777: )?(Digest: )?invalid nonce .*? received - user attempted time travel(, referer: \S+)?\s*$
ignoreregex =
@@ -50,5 +50,7 @@ ignoreregex =
# ^%(_apache_error_client)s (AH01779: )?user .*: one-time-nonce mismatch - sending new nonce\s*$
# ^%(_apache_error_client)s (AH02486: )?realm mismatch - got `.*' but no realm specified\s*$
#
+# referer is always in error log messages if it exists added as per the log_error_core function in server/log.c
+#
# Author: Cyril Jaquier
# Major edits by Daniel Black
diff --git a/config/filter.d/apache-noscript.conf b/config/filter.d/apache-noscript.conf
index f3c6246..7ea257b 100644
--- a/config/filter.d/apache-noscript.conf
+++ b/config/filter.d/apache-noscript.conf
@@ -9,8 +9,8 @@ before = apache-common.conf
[Definition]
-failregex = ^%(_apache_error_client)s ((AH001(28|30): )?File does not exist|(AH01264: )?script not found or unable to stat): /\S*(\.php|\.asp|\.exe|\.pl)\s*$
- ^%(_apache_error_client)s script '/\S*(\.php|\.asp|\.exe|\.pl)\S*' not found or unable to stat\s*$
+failregex = ^%(_apache_error_client)s ((AH001(28|30): )?File does not exist|(AH01264: )?script not found or unable to stat): /\S*(\.php|\.asp|\.exe|\.pl)(, referer: \S+)?\s*$
+ ^%(_apache_error_client)s script '/\S*(\.php|\.asp|\.exe|\.pl)\S*' not found or unable to stat(, referer: \S+)?\s*$
ignoreregex =
diff --git a/config/filter.d/apache-overflows.conf b/config/filter.d/apache-overflows.conf
index 9255152..74e44b8 100644
--- a/config/filter.d/apache-overflows.conf
+++ b/config/filter.d/apache-overflows.conf
@@ -8,7 +8,7 @@ before = apache-common.conf
[Definition]
-failregex = ^%(_apache_error_client)s ((AH0013[456]: )?Invalid (method|URI) in request .*( - possible attempt to establish SSL connection on non-SSL port)?|(AH00565: )?request failed: URI too long \(longer than \d+\)|request failed: erroneous characters after protocol string: .*|AH00566: request failed: invalid characters in URI)$
+failregex = ^%(_apache_error_client)s ((AH0013[456]: )?Invalid (method|URI) in request .*( - possible attempt to establish SSL connection on non-SSL port)?|(AH00565: )?request failed: URI too long \(longer than \d+\)|request failed: erroneous characters after protocol string: .*|AH00566: request failed: invalid characters in URI)(, referer: \S+)?$
ignoreregex =
diff --git a/testcases/files/logs/apache-auth b/testcases/files/logs/apache-auth
index d6c40ac..787d160 100644
--- a/testcases/files/logs/apache-auth
+++ b/testcases/files/logs/apache-auth
@@ -115,3 +115,6 @@
# failJSON: { "time": "2013-06-01T02:17:42", "match": true , "host": "192.168.0.2" }
[Sat Jun 01 02:17:42 2013] [error] [client 192.168.0.2] user root not found
+
+# failJSON: { "time": "2013-11-18T22:39:33", "match": true , "host": "91.49.82.139" }
+[Mon Nov 18 22:39:33 2013] [error] [client 91.49.82.139] user gg not found: /, referer: http://sj.hopto.org/management.html
--
1.8.3.1
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