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- From: scott@zorch.SF-Bay.ORG (Scott Hazen Mueller)
- Newsgroups: alt.sources,news.admin
- Subject: After the last bunch of BIFFishness...
- Message-ID: <1990Jun3.211456.8805@zorch.SF-Bay.ORG>
- Date: 3 Jun 90 21:14:56 GMT
-
- Since the last rash of BIFF forged newgroups has given everyone fits, I'll
- repost my hacked C news newgroup and rmgroup scripts. These scripts fake
- B news-style mail messages that give the originator of the control message,
- a subject line with the newsgroup name (and the moderated keyword), and include
- the control message text (if any) in the notifying mail message. When the
- BIFF struck, Zorch.SF-Bay.ORG, my home site, and Tandem.COM, where I work, were
- both secure to the extent that all that happened was gobs and gobs of junk
- mail.
-
- Enjoy,
- --
- Scott Hazen Mueller | scott@zorch.SF-Bay.ORG or (ames|pyramid|vsi1)!zorch!scott
- 10122 Amador Oak Ct.|(408) 253-6767 |Mail fusion-request@zorch.SF-Bay.ORG
- Cupertino, CA 95014|Love make, not more|for emailed sci.physics.fusion digests
- SF-Bay Public-Access Unix 408-996-7358/61/78/86 login newuser password public
-
- ----- cut here for newgroup -----
- #! /bin/sh
- # newgroup group flag - create group (4-field version: B-2.10.3+ compatible)
- # subject to our sys file group pattern
-
- # =()<. ${NEWSCONFIG-@<NEWSCONFIG>@}>()=
- . ${NEWSCONFIG-/usr/lib/news/bin/config}
- export NEWSCTL NEWSBIN NEWSARTS
- PATH=$NEWSCTL/bin:$NEWSBIN/relay:$NEWSBIN:$NEWSPATH ; export PATH # include mkpdir
- umask $NEWSUMASK
-
- afile=/tmp/ncd
- afilehdr=/tmp/ncdhdr
- afilebody=/tmp/ncdbody
- hdr=/tmp/nc$$
-
- trap "rm -f $hdr $afile*; exit 0" 0
- $NEWSBIN/inject/tear $afile
- $NEWSBIN/canonhdr <$afilehdr >$hdr
-
- # unapproved ctl msg? then quit
- grep -s '^Approved:' $hdr >/dev/null || { rm -f $hdr; exit 0; }
-
- SENDER="`grep '^Sender:' $hdr | sed 's/^[^:]*: *//'`"
- case "$SENDER" in
- "") SENDER="`grep '^From:' $hdr | sed 's/^[^:]*: *//' `" ;;
- esac
-
- ( echo "Subject: newgroup $1 $2"; echo "$SENDER says:";
- cat $afilebody ) | mail $NEWSMASTER
-
- ----- cut here for rmgroup -----
-
- #! /bin/sh
- # rmgroup group - snuff group
-
- # =()<. ${NEWSCONFIG-@<NEWSCONFIG>@}>()=
- . ${NEWSCONFIG-/usr/lib/news/bin/config}
- export NEWSCTL NEWSBIN NEWSARTS
- PATH=$NEWSCTL/bin:$NEWSBIN:$NEWSPATH ; export PATH
- umask $NEWSUMASK
-
- afile=/tmp/ncd
- afilehdr=/tmp/ncdhdr
- afilebody=/tmp/ncdbody
- hdr=/tmp/nc$$
-
- $NEWSBIN/inject/tear $afile
- $NEWSBIN/canonhdr <$afilehdr >$hdr
-
- # unapproved ctl msg? then quit
- egrep '^Approved:' $hdr >/dev/null || { rm -f $afile*; exit 0; }
-
- # quit if no active entry
- egrep "^`echo $1 | sed 's/\./\\\\./g'` " $NEWSCTL/active >/dev/null ||
- { rm -f $hdr $afile*; exit 0; }
-
- SENDER="`grep '^Sender:' $hdr | sed 's/^[^:]*: *//'`"
- case "$SENDER" in
- "") SENDER="`grep '^From:' $hdr | sed 's/^[^:]*: *//'`" ;;
- esac
-
- # tell the local usenet administrator to do it by hand
- ( echo "Subject: rmgroup $1"; echo "$SENDER says:";
- cat $afilebody ) | mail $NEWSMASTER
-
- rm -f $hdr $afilehdr $afilebody
-