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| author | Ben Lindstrom <mouring@eviladmin.org> | 2002-06-09 22:01:48 +0200 |
|---|---|---|
| committer | Ben Lindstrom <mouring@eviladmin.org> | 2002-06-09 22:01:48 +0200 |
| commit | a20715788dc44ed629e4320d7e9af4e285a559ab (patch) | |
| tree | 6ec4f8446e2fee15891f9e3fd32e69a63ec96590 /ssh-keysign.c | |
| parent | - markus@cvs.openbsd.org 2002/06/08 05:07:56 (diff) | |
| download | openssh-a20715788dc44ed629e4320d7e9af4e285a559ab.tar.xz openssh-a20715788dc44ed629e4320d7e9af4e285a559ab.zip | |
- markus@cvs.openbsd.org 2002/06/08 05:07:09
[ssh-keysign.c]
only accept 20 byte session ids
Diffstat (limited to 'ssh-keysign.c')
| -rw-r--r-- | ssh-keysign.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/ssh-keysign.c b/ssh-keysign.c index 78929b2e0..520927829 100644 --- a/ssh-keysign.c +++ b/ssh-keysign.c @@ -22,7 +22,7 @@ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "includes.h" -RCSID("$OpenBSD: ssh-keysign.c,v 1.2 2002/05/31 10:30:33 markus Exp $"); +RCSID("$OpenBSD: ssh-keysign.c,v 1.3 2002/06/08 05:07:09 markus Exp $"); #include <openssl/evp.h> @@ -60,8 +60,12 @@ valid_request(struct passwd *pw, char *host, Key **ret, u_char *data, buffer_init(&b); buffer_append(&b, data, datalen); - /* session id */ - buffer_skip_string(&b); + /* session id, currently limited to SHA1 (20 bytes) */ + p = buffer_get_string(&b, &len); + if (len != 20) + fail++; + xfree(p); + if (buffer_get_char(&b) != SSH2_MSG_USERAUTH_REQUEST) fail++; |