Medium severity · published May 15, 2019
CVE-2019-1810
A vulnerability in the Image Signature Verification feature used in an NX-OS CLI command in Cisco Nexus 3000 Series and 9000 Series Switches could allow an authenticated, local…
6.7
CVSS
0.3%
EPSS
No
On KEV
Description
A vulnerability in the Image Signature Verification feature used in an NX-OS CLI command in Cisco Nexus 3000 Series and 9000 Series Switches could allow an authenticated, local attacker with administrator-level credentials to install a malicious software image on an affected device. The vulnerability exists because software digital signatures are not properly verified during CLI command execution. An attacker could exploit this vulnerability to install an unsigned software image on an affected device. Note: If the device has not been patched for the vulnerability previously disclosed in the Cisco Security Advisory cisco-sa-20190306-nxos-sig-verif, a successful exploit could allow the attacker to boot a malicious software image.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NX
Nx-os · Cisco
6.1\(2\)i3\(4\) before 7.0\(3\)i7\(5\); 7.0\(3\)i7\(5a\) before 9.2\(2\); 7.0\(3\)i3\(1\) before 7.0\(3\)i7\(1\); 7.0\(3\)i7\(2\) before 9.2\(1\); 7.0\(3\)i4\(1\) before 7.0\(3\)i7\(5\); 7.0\(3\)i7\(5a\) before 9.2\(2\); +2 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-1810
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-1810
Broken Link
http://www.securityfocus.com/bid/108431
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv
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