https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7782
Bug ID: 7782
Summary: Insecure dependency in connect while running with -T
switch at /usr/lib64/perl5/IO/Socket.pm line 114
Product: Spamassassin
Version: 3.4.3
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Plugins
Assignee: dev@spamassassin.apache.org
Reporter: h.rei...@thelounge.net
Target Milestone: Undefined
that's somehow a showstopper for upgrade to 3.4.3
how would someone abuse the hardcoded socket path from the config?
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clamav.cf:
ifplugin Mail::SpamAssassin::Plugin::ClamAV
full CLAMAV_JNK eval:check_clamav('/run/clamd/clamd-sa.sock')
describe CLAMAV_JNK ClamAV detected malware/phishing/junk
priority CLAMAV_JNK 800
score CLAMAV_JNK 5.5
full CLAMAV_MLW eval:check_clamav('/run/clamd/clamd.sock')
describe CLAMAV_MLW ClamAV detected malware/phishing
priority CLAMAV_MLW 800
score CLAMAV_MLW 9.9
endif
---------------------------------------
clamav.pm:
package Mail::SpamAssassin::Plugin::ClamAV;
use strict;
use Mail::SpamAssassin;
use Mail::SpamAssassin::Plugin;
use Mail::SpamAssassin::Logger;
use File::Scan::ClamAV;
our @ISA = qw(Mail::SpamAssassin::Plugin);
sub new
{
my ($class, $mailsa) = @_;
$class = ref($class) || $class;
my $self = $class->SUPER::new($mailsa);
bless($self, $class);
$self->register_eval_rule('check_clamav');
return $self;
}
sub check_clamav
{
my($self, $pms, $fulltext, $socket) = @_;
dbg("ClamAV: File::Scan::ClamAV over %s", $socket);
my $clamav = new File::Scan::ClamAV(port => $socket);
my($code, $virus) = $clamav->streamscan(${$fulltext});
my $isspam = 0;
if(!$code)
{
my $errstr = $clamav->errstr();
dbg("ClamAV: $errstr");
}
elsif($code eq 'FOUND')
{
$isspam = 1;
$pms->test_log($virus);
dbg("ClamAV: $virus");
}
return $isspam;
}
1;
---------------------------------------
Jan 7 10:56:39 testserver spamd[1393]: spamd: server killed by SIGTERM,
shutting down
Jan 7 10:56:42 testserver spamd[128349]: util: setuid: ruid=189 euid=189
rgid=188 188 egid=188 188
Jan 7 10:56:42 testserver spamd[128343]: rules: failed to run CLAMAV_JNK test,
skipping:
Jan 7 10:56:42 testserver spamd[128343]: (Insecure dependency in connect while
running with -T switch at /usr/lib64/perl5/IO/Socket.pm line 114.
Jan 7 10:56:42 testserver spamd[128343]: )
Jan 7 10:56:42 testserver spamd[128343]: rules: failed to run CLAMAV_MLW test,
skipping:
Jan 7 10:56:42 testserver spamd[128343]: (Insecure dependency in connect while
running with -T switch at /usr/lib64/perl5/IO/Socket.pm line 114.
Jan 7 10:56:42 testserver spamd[128343]: )
Jan 7 10:56:42 testserver spamd[128350]: util: setuid: ruid=189 euid=189
rgid=188 188 egid=188 188
Jan 7 10:56:42 testserver spamd[128343]: spamd: server started on UNIX domain
socket /run/spamassassin/spamassassin.sock (running version 3.4.3)
Jan 7 10:56:42 testserver spamd[128343]: spamd: server pid: 128343
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