From 2a000b0216eaffb9ffa519a195a388d380f07766 Mon Sep 17 00:00:00 2001 From: Jonas Smedegaard Date: Sun, 2 Jul 2006 20:34:20 +0000 Subject: Add/improve various ignores. --- logcheck/TODO | 1 + logcheck/violations.ignore.d/amavisd-new | 4 +++- logcheck/violations.ignore.d/local | 10 ++++++---- logcheck/violations.ignore.d/postfix | 6 +++--- logcheck/violations.ignore.d/temp | 1 + 5 files changed, 14 insertions(+), 8 deletions(-) create mode 100644 logcheck/TODO (limited to 'logcheck') diff --git a/logcheck/TODO b/logcheck/TODO new file mode 100644 index 0000000..25d5b86 --- /dev/null +++ b/logcheck/TODO @@ -0,0 +1 @@ + * Use [[:xdigit:]] as first segment in postfix rules diff --git a/logcheck/violations.ignore.d/amavisd-new b/logcheck/violations.ignore.d/amavisd-new index 7f2c50d..7e9bac9 100644 --- a/logcheck/violations.ignore.d/amavisd-new +++ b/logcheck/violations.ignore.d/amavisd-new @@ -5,7 +5,9 @@ #^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) NOTICE: DSN contains BAD HEADER & SPAM; bounce is not bouncable, mail intentionally dropped$ #^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) NOTICE: UNABLE TO SEND DSN to <[^[:space:]]*>: 550 5\.1\.0 <[^[:space:]]*>: Recipient address rejected: User unknown in virtual alias table$ #^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) mail_via_smtp: 550 5\.1\.0 <[^[:space:]]*>: Recipient address rejected: User unknown in virtual alias table$ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) Blocked SPAM, [0-9-]+ <[^[:space:]]*> -> <[^[:space:]]*>, quarantine: [^[:space:]]+, Message-ID: [^[:space:]]+, mail_id: [^[:space:]]+, Hits: [-\.0-9]+, [0-9]+ ms$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) INFO: unfolded [0-9]+ illegal all-whitespace continuation lines$ -^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) Passed BAD-HEADER, \[[\.0-9]+\] <[^[:space:]]*> -> <[^[:space:]]*>, Message-ID: [^[:space:]]+, mail_id: [^[:space:]]+, Hits: [-\.0-9]+, [0-9]+ ms$ +##OLD: ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) Passed BAD-HEADER, \[[\.0-9]+\] <[^[:space:]]*> -> <[^[:space:]]*>, Message-ID: [^[:space:]]+, mail_id: [^[:space:]]+, Hits: [-\.0-9]+, [0-9]+ ms$ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) Passed BAD-HEADER, <[^[:space:]]*> -> <[^[:space:]]*>, Message-ID: [^[:space:]]+, mail_id: [^[:space:]]+, Hits: [-\.0-9]+, [0-9]+ ms$ # Suspicious words within email addresses are ok ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: .*<[^>[:space:]]*(attack|BAD|debug|deny|error|expn|promisc|refused)[^>[:space:]]*>.*$ diff --git a/logcheck/violations.ignore.d/local b/logcheck/violations.ignore.d/local index 7d20971..a0fc521 100644 --- a/logcheck/violations.ignore.d/local +++ b/logcheck/violations.ignore.d/local @@ -1,5 +1,6 @@ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) Blocked SPAM, [0-9-]+ <[^[:space:]]*> -> <[^[:space:]]*>, quarantine: [^[:space:]]+, Message-ID: [^[:space:]]+, mail_id: [^[:space:]]+, Hits: [-\.0-9]+, [0-9]+ ms$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) INFO: unfolded [0-9]+ illegal all-whitespace continuation lines$ -^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) Passed BAD-HEADER, \[[\.0-9]+\] <[^[:space:]]*> -> <[^[:space:]]*>, Message-ID: [^[:space:]]+, mail_id: [^[:space:]]+, Hits: [-\.0-9]+, [0-9]+ ms$ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) Passed BAD-HEADER, <[^[:space:]]*> -> <[^[:space:]]*>, Message-ID: [^[:space:]]+, mail_id: [^[:space:]]+, Hits: [-\.0-9]+, [0-9]+ ms$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: .*<[^>[:space:]]*(attack|BAD|debug|deny|error|expn|promisc|refused)[^>[:space:]]*>.*$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ named\[[0-9]+\]: client [\.0-9]+#[0-9]+: update forwarding denied$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ named\[[0-9]+\]: zone .*: refresh: failure trying master .*: timed out @@ -42,14 +43,14 @@ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: [^[:space:]]+: Could not start TLS: client failure$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: (Unv|V)erified: subject_CN=.*, issuer=.* ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: certificate peer name verification failed for [^[:space:]]+: (CommonName mis-match:.*|[0-9]+ dNSNames in certificate found, but none matches)$ -^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: certificate verification failed for [^[:space:]]+:(( num=10:)?certificate has expired| num=24:invalid CA certificate)$ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: certificate verification failed for [^[:space:]]+:( num=7:certificate signature failure|( num=10:)?certificate has expired| num=24:invalid CA certificate)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: (Connection refused|server refused mail service) +\(port 25\)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?421 Fork failed +\(port 25\)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?450 <[^[:space:]]+>: Client host rejected: may not be mail exchanger +\(port 25\)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?450 Client host rejected: cannot find your hostname, \[[\.0-9]+\] +\(port 25\)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?521 [^[:space:]]+ access denied +\(port 25\)$ -^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?550 (<[^[:space:]]+>: Client host rejected: (Blocked|Use an authorized relay)|[\.0-9]+, Sorry access denied to you|ERROR: Mail Refused - [\.0-9]+ - See [^[:space:]]+|Host [\.0-9]+ is reject as in dynamic reject list \(dynamic\.reject\)|This system is configured to reject mail from [^[:space:]]+ \[[\.0-9]+\] \((DNS reverse lookup failed|Host blacklisted - Found on Realtime Black List server '[^[:space:]]+'\))) +\(port 25\)$ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?550 (<[^[:space:]]+>: Client host rejected: (Blocked|Use an authorized relay)|[\.0-9]+, Sorry access denied to you|ERROR: Mail Refused - [\.0-9]+ - See [^[:space:]]+|Host [\.0-9]+ is reject as in dynamic reject list \(dynamic\.reject\)|This system is configured to reject mail from [^[:space:]]+ \[[\.0-9]+\] \((DNS reverse lookup failed|Host blacklisted - Found on Realtime Black List server '[^[:space:]]+')\)) +\(port 25\)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?554 ([\.0-9]+ )?<[^[:space:]]+>: Client host rejected: (Access denied|No mail accepted from you|Reject Dynamic ip|spam source) +\(port 25\)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?554 (Access denied|Client host rejected: cannot find your hostname.*|(IP|Unwelcome) connection rejected\.|Transaction Failed( Listed in deny list\.)?|#5\.5\.4 Relaying denied\. IP name lookup failed for [\.0-9]+) +\(port 25\)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/qmgr\[[0-9]+\]: [^[:space:]]+: to=<[^>]*>, relay=none, delay=[0-9]+, status=deferred \(delivery temporarily suspended: host [^[:space:]]+\[[\.0-9]+\] refused to talk to me: ([^[:space:]]+ +550 ERROR: Mail Refused - [\.0-9]+ - See http://security.rr.com/cgi-bin/block_lookup\?[\.0-9]+ \)|550 Host [\.0-9]+ is reject as in dynamic reject list \(dynamic.reject\))$ @@ -65,7 +66,7 @@ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: warning: Illegal address syntax from [^[:space:]]+\[[\.0-9]+\] in RCPT command: .* ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: warning:( smtpd_peer_init:)? [\.0-9]+: hostname [^[:space:]]+ verification failed: (Name or service not known|Temporary failure in name resolution)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [^[:space:]]+: reject: (DATA|RCPT) from [^[:space:]]+\[[\.0-9]+\]: [45][0-9]{2}( [^;]+;){1,3} from=<[^>]*>( to=<[^>]*>)? proto=E?SMTP( helo=<[^>]*>)?$ -^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/[[:alnum:]]+\[[0-9]+\]:.* (from|helo|message\-id|to)=<[^>]*(attack|BAD|debug|deny|error|expn|refused)[^>]*>.*$ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/[[:alnum:]]+\[[0-9]+\]:.* (from|helo|message\-id|to)=<[^>]*(attack|BAD|debug|denied|deny|error|expn|refused)[^>]*>.*$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/[[:alnum:]]+\[[0-9]+\]: warning: no MX host for [^[:space:]]*(attack|BAD|debug|deny|error|expn|refused)[^[:space:]]* has a valid A record$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ proftpd\[[0-9]+\]: [^[:space:]]+ \([^[:space:]\[]+\[[\.0-9]+\]\) - USER anonymous \(Login failed\): Can't find user\.$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ smbd\[[0-9]+\]: read(_socket)?_data: (read|recv) failure for [[:digit:]]+\. Error = (No route to host|Connection (reset by peer|timed out)) ?$ @@ -99,4 +100,5 @@ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ IMP\[[0-9]+\]: FAILED [^[:space:]]+ to [^[:space:]]+:143 as [^[:space:]]+$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ i(map|pop3)d\[[0-9]+\]: (AUTHENTICATE (LOGIN|PLAIN) failure|Login failed)( user=[^[:space:]]*)?( auth=[^[:space:]]*)? host=([^[:space:]]* )?\[[^[:space:]]+\]$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ mod_auth_shadow: VALIDATE: user: [^[:space:]]+, Authentication failure$ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: warning: [^[:space:]]+\[[\.0-9]+\]: SASL LOGIN authentication failed$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ amavis\[[0-9]+\]: \([0-9-]+\) do_executable/do_unzip failed, ignoring: format error: bad signature: 0x00905a4d at offset 0 in file /var/lib/amavis/amavis-[0-9T-]+/parts/part-[0-9]+$ diff --git a/logcheck/violations.ignore.d/postfix b/logcheck/violations.ignore.d/postfix index 785b9ed..606d16c 100644 --- a/logcheck/violations.ignore.d/postfix +++ b/logcheck/violations.ignore.d/postfix @@ -11,7 +11,7 @@ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: (Unv|V)erified: subject_CN=.*, issuer=.* #^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: Peer verification: CommonName in certificate does not match: [^!]* != [^[:space:]]+$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: certificate peer name verification failed for [^[:space:]]+: (CommonName mis-match:.*|[0-9]+ dNSNames in certificate found, but none matches)$ -^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: certificate verification failed for [^[:space:]]+:(( num=10:)?certificate has expired| num=24:invalid CA certificate)$ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: certificate verification failed for [^[:space:]]+:( num=7:certificate signature failure|( num=10:)?certificate has expired| num=24:invalid CA certificate)$ # Too much spam refuse to eat their own shit ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: (Connection refused|server refused mail service) +\(port 25\)$ @@ -19,7 +19,7 @@ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?450 <[^[:space:]]+>: Client host rejected: may not be mail exchanger +\(port 25\)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?450 Client host rejected: cannot find your hostname, \[[\.0-9]+\] +\(port 25\)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?521 [^[:space:]]+ access denied +\(port 25\)$ -^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?550 (<[^[:space:]]+>: Client host rejected: (Blocked|Use an authorized relay)|[\.0-9]+, Sorry access denied to you|ERROR: Mail Refused - [\.0-9]+ - See [^[:space:]]+|Host [\.0-9]+ is reject as in dynamic reject list \(dynamic\.reject\)|This system is configured to reject mail from [^[:space:]]+ \[[\.0-9]+\] \((DNS reverse lookup failed|Host blacklisted - Found on Realtime Black List server '[^[:space:]]+'\))) +\(port 25\)$ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?550 (<[^[:space:]]+>: Client host rejected: (Blocked|Use an authorized relay)|[\.0-9]+, Sorry access denied to you|ERROR: Mail Refused - [\.0-9]+ - See [^[:space:]]+|Host [\.0-9]+ is reject as in dynamic reject list \(dynamic\.reject\)|This system is configured to reject mail from [^[:space:]]+ \[[\.0-9]+\] \((DNS reverse lookup failed|Host blacklisted - Found on Realtime Black List server '[^[:space:]]+')\)) +\(port 25\)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?554 ([\.0-9]+ )?<[^[:space:]]+>: Client host rejected: (Access denied|No mail accepted from you|Reject Dynamic ip|spam source) +\(port 25\)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: connect to [^[:space:]]+\[[\.0-9]+\]: server refused to talk to me: ([^[:space:]]+ +)?554 (Access denied|Client host rejected: cannot find your hostname.*|(IP|Unwelcome) connection rejected\.|Transaction Failed( Listed in deny list\.)?|#5\.5\.4 Relaying denied\. IP name lookup failed for [\.0-9]+) +\(port 25\)$ # Ignore blacklisting due to being dynamic - or without explaining/hinting at all @@ -38,5 +38,5 @@ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: warning:( smtpd_peer_init:)? [\.0-9]+: hostname [^[:space:]]+ verification failed: (Name or service not known|Temporary failure in name resolution)$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [^[:space:]]+: reject: (DATA|RCPT) from [^[:space:]]+\[[\.0-9]+\]: [45][0-9]{2}( [^;]+;){1,3} from=<[^>]*>( to=<[^>]*>)? proto=E?SMTP( helo=<[^>]*>)?$ # Suspicious words within email addresses are ok -^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/[[:alnum:]]+\[[0-9]+\]:.* (from|helo|message\-id|to)=<[^>]*(attack|BAD|debug|deny|error|expn|refused)[^>]*>.*$ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/[[:alnum:]]+\[[0-9]+\]:.* (from|helo|message\-id|to)=<[^>]*(attack|BAD|debug|denied|deny|error|expn|refused)[^>]*>.*$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/[[:alnum:]]+\[[0-9]+\]: warning: no MX host for [^[:space:]]*(attack|BAD|debug|deny|error|expn|refused)[^[:space:]]* has a valid A record$ diff --git a/logcheck/violations.ignore.d/temp b/logcheck/violations.ignore.d/temp index 335a030..7012f49 100644 --- a/logcheck/violations.ignore.d/temp +++ b/logcheck/violations.ignore.d/temp @@ -26,6 +26,7 @@ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ IMP\[[0-9]+\]: FAILED [^[:space:]]+ to [^[:space:]]+:143 as [^[:space:]]+$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ i(map|pop3)d\[[0-9]+\]: (AUTHENTICATE (LOGIN|PLAIN) failure|Login failed)( user=[^[:space:]]*)?( auth=[^[:space:]]*)? host=([^[:space:]]* )?\[[^[:space:]]+\]$ ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ mod_auth_shadow: VALIDATE: user: [^[:space:]]+, Authentication failure$ +^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: warning: [^[:space:]]+\[[\.0-9]+\]: SASL LOGIN authentication failed$ # sm@xayide.jones.dk tries aggressively to auto-login #^\w{3} [ :0-9]{11} [._[:alnum:]-]+ sshd\[[0-9]+\]: \(pam_unix\) (authentication failure|2 more authentication failures); logname= uid=0 euid=0 tty=ssh ruser= rhost=81.19.251.(69|74) user=sm$ #^\w{3} [ :0-9]{11} [._[:alnum:]-]+ sshd\[[0-9]+\]: error: PAM: Authentication failure for sm from 81.19.251.(69|74)$ -- cgit v1.2.3