7.2
CVE-2020-3209
- EPSS 0.27%
- Veröffentlicht 03.06.2020 18:15:18
- Zuletzt bearbeitet 21.11.2024 05:30:33
- Erkennungen
LoginCisco IOS XE Software Digital Signature Verification Bypass Vulnerability
A vulnerability in software image verification in Cisco IOS XE Software could allow an unauthenticated, physical attacker to install and boot a malicious software image or execute unsigned binaries on an affected device. The vulnerability is due to an improper check on the area of code that manages the verification of the digital signatures of system image files during the initial boot process. An attacker could exploit this vulnerability by loading unsigned software on an affected device. A successful exploit could allow the attacker to install and boot a malicious software image or execute unsigned binaries on the targeted device.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.27% | 0.181 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 6.8 | 0.9 | 5.9 |
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
| NIST | 7.2 | 3.9 | 10 |
AV:L/AC:L/Au:N/C:C/I:C/A:C
|
| Cisco PSIRT | 6.8 | 0.9 | 5.9 |
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
CWE-347 Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-digsig-bypass-FYQ3bmVq