CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
5.2%
A vulnerability in the Remote Package Manager (RPM) subsystem of Cisco NX-OS Software could allow an authenticated, local attacker with administrator credentials to leverage a time-of-check, time-of-use (TOCTOU) race condition to corrupt local variables, which could lead to arbitrary command injection. The vulnerability is due to the lack of a proper locking mechanism on critical variables that need to stay static until used. An attacker could exploit this vulnerability by authenticating to an affected device and issuing a set of RPM-related CLI commands. A successful exploit could allow the attacker to perform arbitrary command injection. The attacker would need administrator credentials for the targeted device.
Vendor | Product | Version | CPE |
---|---|---|---|
cisco | nx-os | * | cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* |
cisco | nexus_3000 | - | cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:* |
cisco | nexus_3100 | - | cpe:2.3:h:cisco:nexus_3100:-:*:*:*:*:*:*:* |
cisco | nexus_3100-z | - | cpe:2.3:h:cisco:nexus_3100-z:-:*:*:*:*:*:*:* |
cisco | nexus_3100v | - | cpe:2.3:h:cisco:nexus_3100v:-:*:*:*:*:*:*:* |
cisco | nexus_3200 | - | cpe:2.3:h:cisco:nexus_3200:-:*:*:*:*:*:*:* |
cisco | nexus_3400 | - | cpe:2.3:h:cisco:nexus_3400:-:*:*:*:*:*:*:* |
cisco | nexus_3500 | - | cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:* |
cisco | nexus_3524-x | - | cpe:2.3:h:cisco:nexus_3524-x:-:*:*:*:*:*:*:* |
cisco | nexus_3524-xl | - | cpe:2.3:h:cisco:nexus_3524-xl:-:*:*:*:*:*:*:* |
[
{
"product": "Cisco NX-OS Software",
"vendor": "Cisco",
"versions": [
{
"lessThan": "8.3(1)",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
5.2%