PT-2021-1849 · Cisco · Cisco Umbrella

Abhinav Khanna · Published 2021-01-20 · Updated 2021-02-02 · CVE-2021-1350

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Cisco Umbrella (affected versions not specified)

Description The issue is related to insufficient rate limiting controls in the web UI of Cisco Umbrella, which could allow an unauthenticated, remote attacker to negatively affect the performance of the service. An attacker could exploit this by sending crafted HTTPS packets at a high and sustained rate, potentially leading to a denial of service. The vulnerability is associated with unlimited resource allocation in the web interface.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

BDU:2021-00609

CVE-2021-1350

Affected Products

Cisco Umbrella

References · 3

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umb-dos-dgKzDEBP · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00609 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-1350 · Security Note