PT-2021-2792 · Cisco · Cisco Ftd+1

Joshua Perez + 1 · Published 2021-04-28 · Updated 2023-08-16 · CVE-2021-1493

Positive Technologies (AI Summary)

CVSS v3.1

8.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco Adaptive Security Appliance Software (ASA) and Cisco Firepower Threat Defense (FTD) (affected versions not specified)

Description The issue is related to a buffer overflow due to insufficient boundary checks for specific data provided to the web services interface. This could allow an authenticated, remote attacker to cause a buffer overflow on an affected system by sending a malicious HTTP request, potentially disclosing data fragments or causing the device to reload, resulting in a denial of service (DoS) condition.

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

DoS

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2021-02335

CVE-2021-1493

Affected Products

Cisco Asa

Cisco Ftd

References · 7

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-memc-dos-fncTyYKG · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-memc-dos-fncTyYKG · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1493 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/664271 · Security Note
• https://bdu.fstec.ru/vul/2021-02335 · Security Note
• https://osv.dev/vulnerability/CVE-2021-1493 · Vendor Advisory
• https://t.me/cvenotify/56635 · Telegram Post