st->to_read -= st->chunk;
}
+ if (cipher && detect_attack(pktin.data, st->biglen, NULL)) {
+ bombout(("Network attack (CRC compensation) detected!"));
+ crReturn(0);
+ }
+
if (cipher)
cipher->decrypt(pktin.data, st->biglen);
struct RSAKey servkey, hostkey;
struct MD5Context md5c;
static unsigned long supported_ciphers_mask, supported_auths_mask;
- static int tried_publickey;
+ static int tried_publickey, tried_agent;
static int tis_auth_refused, ccard_auth_refused;
static unsigned char session_id[16];
static int cipher_type;
static char username[100];
+ static void *publickey_blob;
+ int publickey_bloblen;
crBegin;
crWaitUntil(ispkt);
- tried_publickey = 0;
+ tried_publickey = tried_agent = 0;
tis_auth_refused = ccard_auth_refused = 0;
+ /* Load the public half of cfg.keyfile so we notice if it's in Pageant */
+ if (*cfg.keyfile) {
+ if (!rsakey_pubblob(cfg.keyfile, &publickey_blob, &publickey_bloblen))
+ publickey_blob = NULL;
+ } else
+ publickey_blob = NULL;
while (pktin.type == SSH1_SMSG_FAILURE) {
static char password[100];
static int pwpkt_type;
pwpkt_type = SSH1_CMSG_AUTH_PASSWORD;
- if (agent_exists()) {
+ if (agent_exists() && !tried_agent) {
/*
* Attempt RSA authentication using Pageant.
*/
static int authed = FALSE;
void *r;
+ tried_agent = 1;
logevent("Pageant is running. Requesting keys.");
/* Request the keys held by the agent. */
sprintf(buf, "Trying Pageant key #%d", i);
logevent(buf);
}
+ if (publickey_blob &&
+ !memcmp(p, publickey_blob, publickey_bloblen)) {
+ logevent("This key matches configured key file");
+ tried_publickey = 1;
+ }
p += 4;
p += ssh1_read_bignum(p, &key.exponent);
p += ssh1_read_bignum(p, &key.modulus);
static char username[100];
static char pwprompt[200];
static char password[100];
+ static void *publickey_blob;
+ static int publickey_bloblen;
crBegin;
tried_agent = FALSE;
tried_keyb_inter = FALSE;
kbd_inter_running = FALSE;
+ /* Load the pub half of cfg.keyfile so we notice if it's in Pageant */
+ if (*cfg.keyfile) {
+ publickey_blob = ssh2_userkey_loadpub(cfg.keyfile, NULL,
+ &publickey_bloblen);
+ } else
+ publickey_blob = NULL;
while (1) {
/*
}
pklen = GET_32BIT(p);
p += 4;
+ if (publickey_blob &&
+ pklen == publickey_bloblen &&
+ !memcmp(p, publickey_blob, publickey_bloblen)) {
+ logevent("This key matches configured key file");
+ tried_pubkey_config = 1;
+ }
pkblob = p;
p += pklen;
alglen = GET_32BIT(pkblob);