Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread נתי שטרן
i attached logs ‫בתאריך יום א׳, 17 בנוב׳ 2024 ב-17:51 מאת ‪Gert Doering‬‏ <‪ g...@greenie.muc.de‬‏>:‬ > Hi, > > On Sun, Nov 17, 2024 at 03:50:18PM +0200, ?? wrote: > > I think there is an option for DoS and therefore there is an option to > cve > > or to write a patch.. > > W

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread Gert Doering
Hi, On Sun, Nov 17, 2024 at 06:16:30PM +0200, ?? wrote: > i attached logs please point out where you see "an option for DoS" in these logs (exactly which line, triggered by what "attack" vector). gert -- "If was one thing all people took for granted, was conviction that if you f

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread נתי שטרן
I think there is an option for DoS and therefore there is an option to cve or to write a patch.. ‫בתאריך יום א׳, 17 בנוב׳ 2024 ב-12:03 מאת ‪Gert Doering‬‏ <‪ g...@greenie.muc.de‬‏>:‬ > Hi, > > On Sun, Nov 17, 2024 at 05:45:16AM +0200, ?? wrote: > > I send logs: > > Everything

Re: [Openvpn-devel] Subject: OpenVPN Client Vulnerability - TLS Key Negotiation Timeout Leading to DoS (Black Box Pentest)

2024-11-17 Thread Gert Doering
Hi, On Sun, Nov 17, 2024 at 08:18:12AM +0200, ?? wrote: > how to write a patch to fix it? Since there does not seem anything to fix, so far, there is no need to write a patch to fix anything. Johan has written you a long and detailed reply how you can proceed. Start with reading th

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread Arne Schwabe
We asked you for many things in the past mails. We expect to do ALL these things to properly report the issue. Not just one of them. E.g. logs of server, usage of a modern version, a description what the DoS vulnerability actually is and so on are still missing. Just sending the client is just

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread Илья Шипицин
‪вс, 17 нояб. 2024 г. в 04:46, ‫נתי שטרן‬‎ :‬ > hi, > I send logs: > it is hard to say what is wrong in the logs sent. from my point of view - those logs do not indicate any security issue. please try to explain in details why do you think it is security issue. > > > greetings, > Netanel > > ‫

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread נתי שטרן
Hello, I don't have access to server logs, I sent you the client logs as well as the line pointing to the DoS: TLS Error: TLS key negotiation failed to occur within 5 seconds SIGUSR1[soft,tls-error] received, process restarting ‫בתאריך יום א׳, 17 בנוב׳ 2024 ב-21:09 מאת ‪Arne Schwabe‬‏ <‪a...@rfc25

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread Илья Шипицин
Whatever they ask you to do On Mon, Nov 18, 2024, 08:38 נתי שטרן wrote: > What can I do to assign a CVE? > I attached the CVE team of ISRAEL CERT to conversation > > tnx > > ‫בתאריך יום ב׳, 18 בנוב׳ 2024 ב-9:29 מאת ‪Илья Шипицин‬‏ <‪ > chipits...@gmail.com‬‏>:‬ > >> As many details as possible

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread Илья Шипицин
As many details as possible. Configuration file usually helps. Other than that also server side logs are nice to have. As well as the detailed repro steps On Mon, Nov 18, 2024, 08:27 נתי שטרן wrote: > Do you want the configuration file? > > ‫בתאריך יום ב׳, 18 בנוב׳ 2024 ב-9:14 מאת ‪Gert Doering

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread נתי שטרן
this is configuration: client nobind dev tun remote-cert-tls server remote 103.6.170.21 1194 udp -BEGIN PRIVATE KEY- MIIEvAIBADANBgkqhkiG9w0BAQEFAASCBKYwggSiAgEAAoIBAQDHcRa93/VAJxQ7 ZvAKTfWgmnBavFPMCxpf19alf6wMcFfJ4bln8U2MIwAciLkmsBNnSmV+I17A26re C05nodgjY7AUJ4BBS+AE4wqSl8C3fgjOTSkbE5e

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread נתי שטרן
I sent my configuration file ‫בתאריך יום ב׳, 18 בנוב׳ 2024 ב-9:29 מאת ‪Илья Шипицин‬‏ <‪ chipits...@gmail.com‬‏>:‬ > As many details as possible. Configuration file usually helps. > > Other than that also server side logs are nice to have. As well as the > detailed repro steps > > On Mon, Nov 18,

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread נתי שטרן
What can I do to assign a CVE? I attached the CVE team of ISRAEL CERT to conversation tnx ‫בתאריך יום ב׳, 18 בנוב׳ 2024 ב-9:29 מאת ‪Илья Шипицин‬‏ <‪ chipits...@gmail.com‬‏>:‬ > As many details as possible. Configuration file usually helps. > > Other than that also server side logs are nice to

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread נתי שטרן
No problem, I understand. it isn't social experiment are 2 different separated questions 1. apply for CVE 2. how to write a PATCH ‫בתאריך יום א׳, 17 בנוב׳ 2024 ב-17:06 מאת ‪Илья Шипицин‬‏ <‪ chipits...@gmail.com‬‏>:‬ > > > ‪вс, 17 нояб. 2024 г. в 16:02, ‫נתי שטרן‬‎ :‬ > >> How to apply to CVE?

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread Илья Шипицин
having heard that, I still think it is social experiment. both questions are covered with numerous guides. you are not telling what you've tried already and whether thre some particular problem with opening CVE or writing a patch or you just want people to teach you from the beginning. ‪вс, 17

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread Gert Doering
Hi, On Sun, Nov 17, 2024 at 03:50:18PM +0200, ?? wrote: > I think there is an option for DoS and therefore there is an option to cve > or to write a patch.. What you *think* is only relevant if you can actually *demonstrate* this. Show the DoS - in a way relevant to OpenVPN

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread Илья Шипицин
‪вс, 17 нояб. 2024 г. в 14:51, ‫נתי שטרן‬‎ :‬ > I think there is an option for DoS and therefore there is an option to cve > or to write a patch.. > ‫בתאריך יום א׳, 17 בנוב׳ 2024 ב-12:03 מאת ‪Gert Doering‬‏ <‪ > g...@greenie.muc.de‬‏>:‬ > did you apply for CVE ? > Hi, >> >> On Sun, N

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread נתי שטרן
How to apply to CVE? netanel ‫בתאריך יום א׳, 17 בנוב׳ 2024 ב-16:56 מאת ‪Илья Шипицин‬‏ <‪ chipits...@gmail.com‬‏>:‬ > > > ‪вс, 17 нояб. 2024 г. в 14:51, ‫נתי שטרן‬‎ :‬ > > > > >> I think there is an option for DoS and therefore there is an option to >> cve or to write a patch.. >> ‫בתאר

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread Илья Шипицин
‪вс, 17 нояб. 2024 г. в 16:02, ‫נתי שטרן‬‎ :‬ > How to apply to CVE? > sorry, it looks like social experiment. you ask how to write a patch, how to apply for cve. maybe you expect people to be friendly, but I'm not sure people are motivated to teach you. sorry, I quit. I'm sure there are a lot

Re: [Openvpn-devel] Subject: Potential OpenVPN Vulnerability Report: Repeated TLS Handshake Failures Leading to Denial-of-Service Conditions

2024-11-17 Thread Gert Doering
Hi, On Sun, Nov 17, 2024 at 05:45:16AM +0200, ?? wrote: > I send logs: Everything I can see in these logs is intentional - the exponential backoff is there on purpose, to avoid (!) exhausting resources (CPU, disk, ...) if there is a transient failure - as in "it can not succeed now,

Re: [Openvpn-devel] Subject: OpenVPN Client Vulnerability - TLS Key Negotiation Timeout Leading to DoS (Black Box Pentest)

2024-11-17 Thread נתי שטרן
Thanks for the tip! ‫בתאריך יום א׳, 17 בנוב׳ 2024 ב-6:24 מאת ‪tincantech‬‏ <‪ tincant...@protonmail.com‬‏>:‬ > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Hi nsh...@gmail.com > > It is common procedure to keep security concerns to the security@ mailing > list. > > To have your concerns