An issue was discovered in Dropbear through 2020.81. Due to a non-RFC-compliant check of the available authentication methods in the client-side SSH code, it is possible for an SSH server to change the login process in its favor. This attack can bypass additional security measures such as FIDO2...
7.5CVSS
7.5AI Score
0.001EPSS
scp.c in Dropbear before 2020.79 mishandles the filename of . or an empty filename, a related issue to...
8.1CVSS
6.2AI Score
0.002EPSS
Dropbear 2011.54 through 2018.76 has an inconsistent failure delay that may lead to revealing valid usernames, a different issue than...
5.3CVSS
5AI Score
0.001EPSS
The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated...
5.3CVSS
5.7AI Score
0.003EPSS
The server in Dropbear before 2017.75 might allow post-authentication root remote code execution because of a double free in cleanup of TCP listeners when the -a option is...
8.8CVSS
8.6AI Score
0.005EPSS
Dropbear before 2017.75 might allow local users to read certain files as root, if the file has the authorized_keys file format with a command= option. This occurs because ~/.ssh/authorized_keys is read with root privileges and symlinks are...
4.7CVSS
5.7AI Score
0.0004EPSS
The dropbearconvert command in Dropbear SSH before 2016.74 allows attackers to execute arbitrary code via a crafted OpenSSH key...
9.8CVSS
9.4AI Score
0.01EPSS
Format string vulnerability in Dropbear SSH before 2016.74 allows remote attackers to execute arbitrary code via format string specifiers in the (1) username or (2) host...
9.8CVSS
9.6AI Score
0.029EPSS
The dbclient in Dropbear SSH before 2016.74 allows remote attackers to execute arbitrary code via a crafted (1) -m or (2) -c...
8.8CVSS
9.3AI Score
0.009EPSS
The dbclient and server in Dropbear SSH before 2016.74, when compiled with DEBUG_TRACE, allows local users to read process memory via the -v argument, related to a failed remote...
5.5CVSS
6AI Score
0.0004EPSS
CRLF injection vulnerability in Dropbear SSH before 2016.72 allows remote authenticated users to bypass intended shell-command restrictions via crafted X11 forwarding...
6.4CVSS
5.9AI Score
0.028EPSS
The buf_decompress function in packet.c in Dropbear SSH Server before 2013.59 allows remote attackers to cause a denial of service (memory consumption) via a compressed packet that has a large size when it is...
6.3AI Score
0.07EPSS
Dropbear SSH Server before 2013.59 generates error messages for a failed logon attempt with different time delays depending on whether the user account exists, which allows remote attackers to discover valid...
6.4AI Score
0.03EPSS
Use-after-free vulnerability in Dropbear SSH Server 0.52 through 2012.54, when command restriction and public key authentication are enabled, allows remote authenticated users to execute arbitrary code and bypass command restrictions via multiple crafted command requests, related to "channels...
9.3AI Score
0.01EPSS
dbclient in Dropbear SSH client before 0.49 does not sufficiently warn the user when it detects a hostkey mismatch, which might allow remote attackers to conduct man-in-the-middle...
6.7AI Score
0.01EPSS
Matt Johnston Dropbear SSH server 0.47 and earlier, as used in embedded Linux devices and on general-purpose operating systems, allows remote attackers to cause a denial of service (connection slot exhaustion) via a large number of connection attempts that exceeds the MAX_UNAUTH_CLIENTS defined...
6.8AI Score
0.027EPSS
Buffer overflow in Dropbear server before 0.47 allows authenticated users to execute arbitrary code via unspecified inputs that cause insufficient memory to be allocated due to an incorrect expression that does not enforce the proper order of...
7.3AI Score
0.003EPSS
The DSS verification code in Dropbear SSH Server before 0.43 frees uninitialized variables, which might allow remote attackers to gain...
7.2AI Score
0.027EPSS