Re: [Openvpn-devel] Security bug with crl-verify

2005-05-12 Thread Thomas NOEL
Hello, Le 11.05.2005 23:25, James Yonan a écrit : True, but I think you're somewhat stretching the connotation of "security bug" here. Yes. Sorry if the "security bug" subject hurt you. No matter how much OpenVPN tries to authenticate the CRL, an attacker with root privileges could easily in

Re: [Openvpn-devel] Security bug with crl-verify

2005-05-11 Thread James Yonan
On Wed, 11 May 2005, Thomas NOEL wrote: > Hello, > > Le 11.05.2005 11:49, James Yonan a écrit : > >>I think there is a security issue with the crl-verify code. OpenVPN only > >>check the issuer of the CRL, but not the CRL signature. > >>If you sign a CRL with another CA (even self signed) which

Re: [Openvpn-devel] Security bug with crl-verify

2005-05-11 Thread Thomas NOEL
Hello, Le 11.05.2005 11:49, James Yonan a écrit : I think there is a security issue with the crl-verify code. OpenVPN only check the issuer of the CRL, but not the CRL signature. If you sign a CRL with another CA (even self signed) which have the same DN than the certificate issuer, OpenVPN acc

Re: [Openvpn-devel] Security bug with crl-verify

2005-05-11 Thread James Yonan
> Hello, > > I think there is a security issue with the crl-verify code. OpenVPN only > check the issuer of the CRL, but not the CRL signature. > > If you sign a CRL with another CA (even self signed) which have the same > DN than the certificate issuer, OpenVPN accept it as a good CRL : the >

[Openvpn-devel] Security bug with crl-verify

2005-05-11 Thread Thomas NOEL
Hello, I think there is a security issue with the crl-verify code. OpenVPN only check the issuer of the CRL, but not the CRL signature. If you sign a CRL with another CA (even self signed) which have the same DN than the certificate issuer, OpenVPN accept it as a good CRL : the server or the