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SSH : Security Vulnerabilities (CVSS score >= 5)

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2012-5975 287 1 Bypass 2012-12-04 2012-12-05
9.3
Admin Remote Medium Not required Complete Complete Complete
The SSH USERAUTH CHANGE REQUEST feature in SSH Tectia Server 6.0.4 through 6.0.20, 6.1.0 through 6.1.12, 6.2.0 through 6.2.5, and 6.3.0 through 6.3.2 on UNIX and Linux, when old-style password authentication is enabled, allows remote attackers to bypass authentication via a crafted session involving entry of blank passwords, as demonstrated by a root login session from a modified OpenSSH client with an added input_userauth_passwd_changereq call in sshconnect2.c.
2 CVE-2011-0766 310 2011-05-31 2011-07-13
7.8
None Remote Low Not required Complete None None
The random number generator in the Crypto application before 2.0.2.2, and SSH before 2.0.5, as used in the Erlang/OTP ssh library before R14B03, uses predictable seeds based on the current time, which makes it easier for remote attackers to guess DSA host and SSH session keys.
3 CVE-2006-5484 2006-10-24 2019-08-28
5.0
None Remote Low Not required None Partial None
SSH Tectia Client/Server/Connector 5.1.0 and earlier, Manager 2.2.0 and earlier, and other products, when using an RSA key with exponent 3, removes PKCS-1 padding before generating a hash, which allows remote attackers to forge a PKCS #1 v1.5 signature that is signed by that RSA key and prevents Tectia from correctly verifying X.509 and other certificates that use PKCS #1, a similar issue to CVE-2006-4339.
4 CVE-2006-4316 +Priv 2006-08-23 2017-07-19
7.2
Admin Local Low Not required Complete Complete Complete
SSH Tectia Management Agent 2.1.2 allows local users to gain root privileges by running a program called sshd, which is obtained from a process listing when the "Restart" action is selected from the Management server GUI, which causes the agent to locate the pathname of the user's program and restart it with root privileges.
5 CVE-2006-4315 +Priv 2006-08-23 2017-07-19
7.2
Admin Local Low Not required Complete Complete Complete
Unquoted Windows search path vulnerability in multiple SSH Tectia products, including Client/Server/Connector 5.0.0 and 5.0.1 and Client/Server before 4.4.5, and Manager 2.12 and earlier, when running on Windows, might allow local users to gain privileges via a malicious program file under "Program Files" or its subdirectories.
6 CVE-2005-4310 2005-12-16 2008-09-05
7.5
User Remote Low Not required Partial Partial Partial
SSH Tectia Server 5.0.0 (A, F, and T), when allowing host-based authentication only, allows users to log in with the wrong credentials.
7 CVE-2003-1119 DoS 2003-12-31 2008-09-05
5.0
None Remote Low Not required None None Partial
SSH Secure Shell before 3.2.9 allows remote attackers to cause a denial of service via malformed BER/DER packets.
8 CVE-2002-1715 Bypass 2002-12-31 2017-07-10
7.2
Admin Local Low Not required Complete Complete Complete
SSH 1 through 3, and possibly other versions, allows local users to bypass restricted shells such as rbash or rksh by uploading a script to a world-writeable directory, then executing that script to gain normal shell access.
9 CVE-2002-1646 2002-12-31 2017-07-10
7.5
User Remote Low Not required Partial Partial Partial
SSH Secure Shell for Servers 3.0.0 to 3.1.1 allows remote attackers to override the AllowedAuthentications configuration and use less secure authentication schemes (e.g. password) than configured for the server.
10 CVE-2002-1645 Exec Code Overflow 2002-11-25 2017-07-10
10.0
Admin Remote Low Not required Complete Complete Complete
Buffer overflow in the URL catcher feature for SSH Secure Shell for Workstations client 3.1 to 3.2.0 allows remote attackers to execute arbitrary code via a long URL.
11 CVE-2002-1644 +Priv 2002-11-25 2017-07-10
7.2
Admin Local Low Not required Complete Complete Complete
SSH Secure Shell for Servers and SSH Secure Shell for Workstations 2.0.13 through 3.2.1, when running without a PTY, does not call setsid to remove the child process from the process group of the parent process, which allows attackers to gain certain privileges.
12 CVE-2001-1476 2001-01-18 2017-07-10
7.5
User Remote Low Not required Partial Partial Partial
SSH before 2.0, with RC4 encryption and the "disallow NULL passwords" option enabled, makes it easier for remote attackers to guess portions of user passwords by replaying user sessions with certain modifications, which trigger different messages depending on whether the guess is correct or not.
13 CVE-2001-1475 2001-01-18 2017-07-10
7.5
User Remote Low Not required Partial Partial Partial
SSH before 2.0, when using RC4 and password authentication, allows remote attackers to replay messages until a new server key (VK) is generated.
14 CVE-2001-1474 2001-01-18 2017-07-10
5.0
None Remote Low Not required None Partial None
SSH before 2.0 disables host key checking when connecting to the localhost, which allows remote attackers to silently redirect connections to the localhost by poisoning the client's DNS cache.
15 CVE-2001-1473 310 2001-01-18 2017-07-10
7.5
User Remote Low Not required Partial Partial Partial
The SSH-1 protocol allows remote servers to conduct man-in-the-middle attacks and replay a client challenge response to a target server by creating a Session ID that matches the Session ID of the target, but which uses a public key pair that is weaker than the target's public key, which allows the attacker to compute the corresponding private key and use the target's Session ID with the compromised key pair to masquerade as the target.
16 CVE-2001-1470 2001-01-18 2017-07-10
5.0
None Remote Low Not required None Partial None
The IDEA cipher as implemented by SSH1 does not protect the final block of a message against modification, which allows remote attackers to modify the block without detection by changing its cyclic redundancy check (CRC) to match the modifications to the message.
17 CVE-2001-1469 2001-01-18 2017-07-10
5.0
None Remote Low Not required None Partial None
The RC4 stream cipher as used by SSH1 allows remote attackers to modify messages without detection by XORing the original message's cyclic redundancy check (CRC) with the CRC of a mask consisting of all the bits of the original message that were modified.
18 CVE-2001-0572 +Info 2001-08-22 2008-09-05
7.5
User Remote Low Not required Partial Partial Partial
The SSH protocols 1 and 2 (aka SSH-2) as implemented in OpenSSH and other packages have various weaknesses which can allow a remote attacker to obtain the following information via sniffing: (1) password lengths or ranges of lengths, which simplifies brute force password guessing, (2) whether RSA or DSA authentication is being used, (3) the number of authorized_keys in RSA authentication, or (4) the lengths of shell commands.
19 CVE-2001-0553 2001-08-14 2017-10-09
7.2
Admin Local Low Not required Complete Complete Complete
SSH Secure Shell 3.0.0 on Unix systems does not properly perform password authentication to the sshd2 daemon, which allows local users to gain access to accounts with short password fields, such as locked accounts that use "NP" in the password field.
20 CVE-2001-0471 2001-06-27 2008-09-05
7.5
User Remote Low Not required Partial Partial Partial
SSH daemon version 1 (aka SSHD-1 or SSH-1) 1.2.30 and earlier does not log repeated login attempts, which could allow remote attackers to compromise accounts without detection via a brute force attack.
21 CVE-2001-0364 DoS 2001-06-27 2017-10-09
5.0
None Remote Low Not required None None Partial
SSH Communications Security sshd 2.4 for Windows allows remote attackers to create a denial of service via a large number of simultaneous connections.
22 CVE-2001-0144 Exec Code Overflow 2001-03-12 2018-05-02
10.0
Admin Remote Low Not required Complete Complete Complete
CORE SDI SSH1 CRC-32 compensation attack detector allows remote attackers to execute arbitrary commands on an SSH server or client via an integer overflow.
23 CVE-2000-0992 Dir. Trav. 2000-12-19 2018-05-02
5.0
None Remote Low Not required None Partial None
Directory traversal vulnerability in scp in sshd 1.2.xx allows a remote malicious scp server to overwrite arbitrary files via a .. (dot dot) attack.
24 CVE-2000-0575 2000-07-05 2017-10-09
7.2
Admin Local Low Not required Complete Complete Complete
SSH 1.2.27 with Kerberos authentication support stores Kerberos tickets in a file which is created in the current directory of the user who is logging in, which could allow remote attackers to sniff the ticket cache if the home directory is installed on NFS.
25 CVE-2000-0217 2000-02-24 2008-09-10
5.1
User Remote High Not required Partial Partial Partial
The default configuration of SSH allows X forwarding, which could allow a remote attacker to control a client's X sessions via a malicious xauth program.
26 CVE-1999-1231 1999-06-09 2017-12-18
5.0
None Remote Low Not required Partial None None
ssh 2.0.12, and possibly other versions, allows valid user names to attempt to enter the correct password multiple times, but only prompts an invalid user name for a password once, which allows remote attackers to determine user account names on the server.
27 CVE-1999-1085 1998-06-12 2016-10-17
5.0
None Remote Low Not required None Partial None
SSH 1.2.25, 1.2.23, and other versions, when used in in CBC (Cipher Block Chaining) or CFB (Cipher Feedback 64 bits) modes, allows remote attackers to insert arbitrary data into an existing stream between an SSH client and server by using a known plaintext attack and computing a valid CRC-32 checksum for the packet, aka the "SSH insertion attack."
28 CVE-1999-1029 1999-05-13 2017-12-18
7.5
None Remote Low Not required Partial Partial Partial
SSH server (sshd2) before 2.0.12 does not properly record login attempts if the connection is closed before the maximum number of tries, allowing a remote attacker to guess the password without showing up in the audit logs.
29 CVE-1999-0310 1998-09-01 2008-09-09
7.5
User Remote Low Not required Partial Partial Partial
SSH 1.2.25 on HP-UX allows access to new user accounts.
30 CVE-1999-0248 1999-01-01 2008-09-05
10.0
None Remote Low Not required Complete Complete Complete
A race condition in the authentication agent mechanism of sshd 1.2.17 allows an attacker to steal another user's credentials.
31 CVE-1999-0013 1998-01-22 2008-09-09
7.5
User Remote Low Not required Partial Partial Partial
Stolen credentials from SSH clients via ssh-agent program, allowing other local users to access remote accounts belonging to the ssh-agent user.
Total number of vulnerabilities : 31   Page : 1 (This Page)
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