PT-2020-3856 · Cisco · Cisco Fxos

Published 2020-09-03 · Updated 2023-04-20 · CVE-2020-3545

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

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

Description: A vulnerability in Cisco FXOS Software could allow an authenticated, local attacker with administrative credentials to cause a buffer overflow condition. The issue is due to incorrect bounds checking of values parsed from a specific file. An attacker could exploit this by supplying a crafted file, potentially causing a stack-based buffer overflow. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system with root privileges. The attacker would need valid administrative credentials to exploit this issue.

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

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-119

CWE-787

Related Identifiers

BDU:2020-04218

CVE-2020-3545

Affected Products

Cisco Fxos

References · 5

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxos-buffer-cSdmfWUt · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-3545 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3545 · Security Note
• https://bdu.fstec.ru/vul/2020-04218 · Security Note
• https://t.me/cvenotify/48723 · Telegram Post