PT-2019-3327 · Cisco · Cisco Ios Xe

Published 2019-09-25 · Updated 2019-10-09 · CVE-2019-12649

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 IOS XE Software (affected versions not specified)

Description The issue is related to the absence of digital signature verification for system image files during the boot process in Cisco IOS XE Software. This could allow an authenticated, local attacker to install and boot a malicious software image or execute unsigned binaries on an affected device. The vulnerability exists because, under certain circumstances, an affected device can be configured to not verify the digital signatures of system image files during the boot process.

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

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

BDU:2019-03434

CVE-2019-12649

Affected Products

Cisco Ios Xe

References · 4

• https://osv.dev/vulnerability/CVE-2019-12649 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-03434 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-iosxe-digsig-bypass · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-12649 · Security Note