CVE-2021-34739
A vulnerability in the web-based management interface of multiple Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to replay valid user session credentials and gain unauthorized access to the web-based management…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.67%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability in the web-based management interface of multiple Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to replay valid user session credentials and gain unauthorized access to the web-based management interface of an affected device. This vulnerability is due to insufficient expiration of session credentials. An attacker could exploit this vulnerability by conducting a man-in-the-middle attack against an affected device to intercept valid session credentials and then replaying the intercepted credentials toward the same device at a later time. A successful exploit could allow the attacker to access the web-based management interface with administrator privileges.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.67% probability · 75th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-613
- Affected
- cisco/sf250-24 firmware · cisco/sf250-24p firmware · cisco/sf250-48 firmware · cisco/sf250-48hp firmware · cisco/sf250-08 firmware · cisco/sf250-08hp firmware · cisco/sf250-10p firmware · cisco/sf250-18 firmware · cisco/sf250-26 firmware · cisco/sf250-26hp firmware · cisco/sf250-26p firmware · cisco/sf250-50 firmware · cisco/sf250-50hp firmware · cisco/sf250-50p firmware · cisco/sf250x-24 firmware · cisco/sf250x-24p firmware · cisco/sf250x-48 firmware · cisco/sf250x-48p firmware · cisco/sf350-08 firmware · cisco/sf350-24 firmware · +40 more
- Source
- psirt@cisco.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.