Yup, that's the trouble. Good sleuthing. Knowing that (and, indeed, `ssh-add -X` reports success regardless of password entered), I can start a real ssh-agent anywhere I want agent locking instead of gui integration.
Thanks! -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/965836 Title: `ssh-add -x` does not prevent key use Status in openssh package in Ubuntu: New Bug description: I add my key: $ ssh-add -t $((60*60*2)) /media/secret/secret/id_dsa After which I physically remove the USB stick with that key and I lock my agent: $ ssh-add -x Enter lock password: Again: Agent locked. Then I ssh someplace I shouldn't be able to get to: $ ssh -v 10.13.37.6 OpenSSH_5.8p1 Debian-7ubuntu1, OpenSSL 1.0.0e 6 Sep 2011 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug1: Connecting to 10.13.37.6 [10.13.37.6] port 22. debug1: Connection established. debug1: identity file /home/martin/.ssh/id_rsa type -1 debug1: identity file /home/martin/.ssh/id_rsa-cert type -1 debug1: identity file /home/martin/.ssh/id_dsa type 2 debug1: Checking blacklist file /usr/share/ssh/blacklist.DSA-1024 debug1: Checking blacklist file /etc/ssh/blacklist.DSA-1024 debug1: identity file /home/martin/.ssh/id_dsa-cert type -1 debug1: identity file /home/martin/.ssh/id_ecdsa type -1 debug1: identity file /home/martin/.ssh/id_ecdsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5p1 Debian-4ubuntu5 debug1: match: OpenSSH_5.5p1 Debian-4ubuntu5 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.8p1 Debian-7ubuntu1 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Server host key: RSA b9:b0:f8:f0:6c:36:5b:b1:55:7f:d3:e3:b6:4c:32:5d debug1: Host '10.13.37.6' is known and matches the RSA host key. debug1: Found key in /home/martin/.ssh/known_hosts:30 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Offering DSA public key: /home/martin/.ssh/id_dsa debug1: Server accepts key: pkalg ssh-dss blen 435 debug1: Authentication succeeded (publickey). Authenticated to 10.13.37.6 ([10.13.37.6]:22). debug1: channel 0: new [client-session] debug1: Requesting no-more-sessi...@openssh.com debug1: Entering interactive session. debug1: Sending environment. debug1: Sending env LANG = en_US.UTF-8 Linux bh-live-02 2.6.35-28-virtual #50-Ubuntu SMP Fri Mar 18 19:16:26 UTC 2011 x86_64 GNU/Linux Ubuntu 10.10 Notably, it says, "debug1: Offering DSA public key: /home/martin/.ssh/id_dsa", but: $ ls -l /home/martin/.ssh/id_dsa ls: cannot access /home/martin/.ssh/id_dsa: No such file or directory Also, -l shows a key when it should show none: $ ssh-add -l 1024 a5:51:2f:98:70:97:97:bb:54:0f:12:cf:72:f7:be:64 /media/secret/secret/id_dsa (DSA) ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: openssh-client 1:5.8p1-7ubuntu1 Uname: Linux 3.3.0-030300rc7-generic x86_64 ApportVersion: 1.23-0ubuntu4 Architecture: amd64 Date: Mon Mar 26 17:52:37 2012 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011) ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash RelatedPackageVersions: ssh-askpass N/A libpam-ssh N/A keychain N/A ssh-askpass-gnome 1:5.8p1-7ubuntu1 SSHClientVersion: OpenSSH_5.8p1 Debian-7ubuntu1, OpenSSL 1.0.0e 6 Sep 2011 SourcePackage: openssh UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/965836/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
