Snort mailing list archives
Re: SMTP Preprocessor : X-ANONYMOUSTLS command
From: <stephane.nasdrovisky () paradigmo com>
Date: Thu, 12 Mar 2015 14:22:10 +0100
More digging in the sources tells me: The message more than x chars comes before checking for the commmand. You'll probably have to wait for version 3. A different check for starttls and x-anonymoustls would be nice. The file src/dynamic_preprocessors/snort_smtp.c contains smtp_known_cmds "*" CMD_ABORT (there’s a starttls or ehlo command but no X- command) SMTP_HandleCommand check for command line exceeding maximum SMTP_GenerateAlert(SMTP_COMMAND_OVERFLOW, "%s: more than %d chars", SMTP_COMMAND_OVERFLOW_STR, smtp_eval_config->max_command_line_len); case CMD_ABORT: smtp_ssn->state_flags |= SMTP_FLAG_ABORT; From: Dan Roberts My questions were regarding the way it is managed by snort...... I'm getting continuously FP (I presume) alerts associated to SMTP traffic (124:1:1 (smtp) Attempted command buffer overflow: more than 512 chars). I bet for a FP.
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Current thread:
- SMTP Preprocessor : X-ANONYMOUSTLS command Dan Roberts (Mar 11)
- Re: SMTP Preprocessor : X-ANONYMOUSTLS command Al Lewis (allewi) (Mar 11)
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- Re: SMTP Preprocessor : X-ANONYMOUSTLS command stephane.nasdrovisky (Mar 12)
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