Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-22 Thread Andy Smith
Hello, On Thu, Jun 20, 2019 at 08:45:13PM +0100, Brian wrote: > At least 2000,000, hosts on the internet. You reckon you will be in > the first tranche of targets? I don't know about "amongst the first" but there are multiple services scanning every port of the entire IPv4 space now and

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-21 Thread Brian
On Fri 21 Jun 2019 at 21:14:42 +1000, Andrew McGlashan wrote: > On 21/6/19 4:08 pm, Reco wrote: > > What I'm most interested is here is the time distribution. I.e. has > > the number of exploitation attempts lowered after the Exim banner > > change? Stayed the same? > > Not a single one since,

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-21 Thread Andrew McGlashan
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 21/6/19 4:08 pm, Reco wrote: > What I'm most interested is here is the time distribution. I.e. has > the number of exploitation attempts lowered after the Exim banner > change? Stayed the same? Not a single one since, so far. Although I

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-21 Thread Reco
Hi. On Fri, Jun 21, 2019 at 06:36:20AM +1000, Andrew McGlashan wrote: > On 21/6/19 5:52 am, Reco wrote: > > Plain old grep is more than enough here. This one: > > > > grep 'run{' /var/log/exim4/reject* > > > > finds things like these: > > > > 2019-06-19 18:54:43 H=(service.com)

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-20 Thread Michael Stone
On Thu, Jun 20, 2019 at 10:50:08PM +0100, Brian wrote: So? Looks like a normal day. Announcing exim as version 4.92 (or any other value) is most unlikely to reduce the number of these attempts. I'm seeing the same attempts on postfix servers...

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-20 Thread Andrew McGlashan
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hi, On 21/6/19 4:49 am, Reco wrote: >> Thank you, I've changed the banner for now let's hope that >> lessens the problem. > > Please share the results if possible. > > On this particular MTA I've counted whopping 4 attempts to exploit >

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-20 Thread Brian
On Fri 21 Jun 2019 at 04:15:35 +1000, Andrew McGlashan wrote: > On 20/6/19 11:57 pm, Brian wrote: > > On Thu 20 Jun 2019 at 23:26:08 +1000, Andrew McGlashan wrote: > > > >> # dpkg-query -l|grep \ exim|awk '{print $2,$3}'|column -t exim4 > >> 4.89-2+deb9u4 exim4-base 4.89-2+deb9u4

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-20 Thread Reco
Hi. On Fri, Jun 21, 2019 at 04:40:11AM +1000, Andrew McGlashan wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > > > On 20/6/19 11:45 pm, Reco wrote: > > Hi. > > > > On Thu, Jun 20, 2019 at 11:26:08PM +1000, Andrew McGlashan wrote: > >> Is there a way to provide version

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-20 Thread Andrew McGlashan
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 20/6/19 11:45 pm, Reco wrote: > Hi. > > On Thu, Jun 20, 2019 at 11:26:08PM +1000, Andrew McGlashan wrote: >> Is there a way to provide version of "4.92" easily or some other >> text to stop the likelihood of outsiders trying to pound on and >>

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-20 Thread Andrew McGlashan
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 20/6/19 11:57 pm, Brian wrote: > On Thu 20 Jun 2019 at 23:26:08 +1000, Andrew McGlashan wrote: > >> # dpkg-query -l|grep \ exim|awk '{print $2,$3}'|column -t exim4 >> 4.89-2+deb9u4 exim4-base 4.89-2+deb9u4 exim4-config >>

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-20 Thread Brian
On Thu 20 Jun 2019 at 23:26:08 +1000, Andrew McGlashan wrote: > # dpkg-query -l|grep \ exim|awk '{print $2,$3}'|column -t > exim4 4.89-2+deb9u4 > exim4-base 4.89-2+deb9u4 > exim4-config4.89-2+deb9u4 > exim4-daemon-heavy 4.89-2+deb9u4 > exim4-doc-html 4.89-1 >

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-20 Thread Greg Wooledge
On Thu, Jun 20, 2019 at 11:26:08PM +1000, Andrew McGlashan wrote: > Shodan [1] reports loads of vulnerable [2] servers running pre 4.92 > versions of Exim, those include Debian Exim variants reporting 4.89 > even for fully patched servers. General answer: https://www.debian.org/security/faq

Re: Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-20 Thread Reco
Hi. On Thu, Jun 20, 2019 at 11:26:08PM +1000, Andrew McGlashan wrote: > Is there a way to provide version of "4.92" easily or some other text > to stop the likelihood of outsiders trying to pound on and exploit the > server? Even though they won't be able to do successfully due to up to >

Exim latest update reports to world as 4.89, which the world thinks is vulnerable.

2019-06-20 Thread Andrew McGlashan
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hi, Shodan [1] reports loads of vulnerable [2] servers running pre 4.92 versions of Exim, those include Debian Exim variants reporting 4.89 even for fully patched servers. $ telnet mail.example.org 25 Trying ip_add_re_ss... Connected to