CVE-2021-34739CWE-613

Cisco Small Business Series Switches Session Credentials Replay Vulnerability

High · published November 4, 2021

CVSS v3.1
8.1
EPSS
2%
Percentile
76.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01670 · 76.6th percentile
Weakness
CWE-613 · Insufficient Session Expiration
Published
2021-11-04T15:40Z
EPSS history
Timeline
  • 04 NOV 15:40Z
    Cisco Small Business Series Switches Session Credentials Replay Vulnerability
    cvelistv5