Sonicwall: Security Vulnerabilities
SonicWall Email Security Virtual Appliance version 10.0.9 and earlier versions contain a default username and a password that is used at initial setup. An attacker could exploit this transitional/temporary user account from the trusted domain to access the Virtual Appliance remotely only when the device is freshly installed and not connected to Mysonicwall.
CVSS Score
7.8
EPSS Score
0.004
Published
2021-05-13
CVE-2021-20023
SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host.
Known exploited
CVSS Score
4.9
EPSS Score
0.502
Published
2021-04-20
A command execution vulnerability in SonicWall GMS 9.3 allows a remote unauthenticated attacker to locally escalate privilege to root.
CVSS Score
9.8
EPSS Score
0.037
Published
2021-04-10
CVE-2021-20021
A vulnerability in the SonicWall Email Security version 10.0.9.x allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host.
Known exploited
CVSS Score
9.8
EPSS Score
0.834
Published
2021-04-09
CVE-2021-20022
SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to upload an arbitrary file to the remote host.
Known exploited
CVSS Score
7.2
EPSS Score
0.165
Published
2021-04-09
An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).
CVSS Score
5.9
EPSS Score
0.629
Published
2021-03-25
The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. Starting from OpenSSL version 1.1.1h a check to disallow certificates in the chain that have explicitly encoded elliptic curve parameters was added as an additional strict check. An error in the implementation of this check meant that the result of a previous check to confirm that certificates in the chain are valid CA certificates was overwritten. This effectively bypasses the check that non-CA certificates must not be able to issue other certificates. If a "purpose" has been configured then there is a subsequent opportunity for checks that the certificate is a valid CA. All of the named "purpose" values implemented in libcrypto perform this check. Therefore, where a purpose is set the certificate chain will still be rejected even when the strict flag has been used. A purpose is set by default in libssl client and server certificate verification routines, but it can be overridden or removed by an application. In order to be affected, an application must explicitly set the X509_V_FLAG_X509_STRICT verification flag and either not set a purpose for the certificate verification or, in the case of TLS client or server applications, override the default purpose. OpenSSL versions 1.1.1h and newer are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1h-1.1.1j).
CVSS Score
7.4
EPSS Score
0.183
Published
2021-03-25
A post-authenticated command injection vulnerability in SonicWall SMA100 allows an authenticated attacker to execute OS commands as a 'nobody' user. This vulnerability impacts SMA100 version 10.2.0.5 and earlier.
CVSS Score
8.8
EPSS Score
0.018
Published
2021-03-13
A post-authenticated vulnerability in SonicWall SMA100 allows an attacker to export the configuration file to the specified email address. This vulnerability impacts SMA100 version 10.2.0.5 and earlier.
CVSS Score
4.9
EPSS Score
0.007
Published
2021-03-13
SonicWall SSO-agent default configuration uses NetAPI to probe the associated IP's in the network, this client probing method allows a potential attacker to capture the password hash of the privileged user and potentially forces the SSO Agent to authenticate allowing an attacker to bypass firewall access controls.
CVSS Score
8.2
EPSS Score
0.008
Published
2021-03-05