Multiple vulnerabilities in SonicWall SonicOS
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2023-1101 CVE-2023-0656 |
| CWE-ID | CWE-287 CWE-121 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #2 is available. |
| Vulnerable software Subscribe |
SonicOS Operating systems & Components / Operating system |
| Vendor | SonicWall |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Improper Authentication
EUVDB-ID: #VU72721
Risk: Medium
CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-1101
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: No
DescriptionThe vulnerability allows a remote user to bypass 2FA authentication process.
The vulnerability exists due to improper restriction of excessive MFA attempts in SonicOS SSLVPN. A remote user can bypass 2FA authentication process and gain unauthorized access to the application.
MitigationInstall updates from vendor's website.
Vulnerable software versionsSonicOS: 6.5 - 7.0.1.0-5051-R843
External linkshttp://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0005
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Stack-based buffer overflow
EUVDB-ID: #VU72720
Risk: Medium
CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2023-0656
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the web management interface of SonicWall FireWalls. A remote unauthenticated attacker can send specially crafted request to the system, trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.
Install updates from vendor's website.
Vulnerable software versionsSonicOS: 6.5 - 7.0.1.0-5051-R843
External linkshttp://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0004
http://ssd-disclosure.com/ssd-advisory-sonicwall-ssl-vpn-out-of-bounds-write-dos
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
