CVE-2020-3297 Cisco Small Business Smart and Managed Switches Session Management Vulnerability
An unauthenticated remote attacker can brute force weak session IDs to hijack administrative sessions on Cisco Small Business switches.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-3297?
CVE-2020-3297 is a high-severity authentication bypass vulnerability in Cisco Small Business 200 Series Smart Switches, published on 2 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in session management for the web-based interface of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to defeat authentication protections and gain unauthorized access to the management interface. The attacker could obtain the privileges of the highjacked session account, which could include administrator privileges on the device. The vulnerability is due to the use of weak entropy generation for session identifier values. An attacker could exploit this vulnerability to determine a current session identifier through brute force and reuse that session identifier to take over an ongoing session. In this way, an attacker could take actions within the management interface with privileges up to the level of the administrative user.
Weakness: CWE-287
Which versions are affected by CVE-2020-3297?
It affects 118 products.
Products include Cisco Sf200-24 Firmware, Cisco Sf200-24fp Firmware, Cisco Sf200-24p Firmware, Cisco Sf200-48 Firmware, Cisco Sf200-48p Firmware, Cisco Sf200e-24 Firmware and 112 more.
How do I fix CVE-2020-3297?
No fix has been published for CVE-2020-3297 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2020-3297 being exploited?
There is no known exploitation of CVE-2020-3297 in the wild and no public exploit code.
Other vulnerabilities in Cisco Small Business 200 Series Smart Switches
- CVE-2018-15439 Cisco Small Business Switches Privileged Access Vulnerability
- CVE-2020-3363 Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability
- CVE-2019-12636 Cisco Small Business Smart and Managed Switches Cross-Site Request Forgery Vulnerability
- CVE-2019-15993 Cisco Small Business Switches Information Disclosure Vulnerability
- CVE-2019-1859 Cisco Small Business Switches Secure Shell Certificate Authentication Bypass Vulnerability
Sources
Also known as GHSA-6c5p-w2ph-4fw7.