CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.5 | $5k-$25k | 0.00 |
A vulnerability was found in Cisco NX-OS (Router Operating System) (affected version not known). It has been rated as critical. Affected by this issue is some unknown functionality of the component Role-Based Access Control. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:
A vulnerability in role-based access control (RBAC) for Cisco NX-OS Software could allow an authenticated, remote attacker to execute CLI commands that should be restricted for a nonadministrative user. The attacker would have to possess valid user credentials for the device. The vulnerability is due to incorrect RBAC privilege assignment for certain CLI commands. An attacker could exploit this vulnerability by authenticating to a device as a nonadministrative user and executing specific commands from the CLI. An exploit could allow the attacker to run commands that should be restricted to administrative users. These commands could modify the configuration or boot image on the device. This vulnerability affects MDS 9000 Series Multilayer Switches, Nexus 2000 Series Switches, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 3600 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules. Cisco Bug IDs: CSCvd77904.
The bug was discovered 06/20/2018. The weakness was shared 06/20/2018 with Cisco as cisco-sa-20180620-nxosrbac / CSCvd77904 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2018-0293 since 11/27/2017. The attack may be launched remotely. A simple authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 03/28/2023). The MITRE ATT&CK project declares the attack technique as T1202.
The commercial vulnerability scanner Qualys is able to test this issue with plugin 316282 (Cisco NX-OS Software Role-Based Access Control Elevated Privileges Vulnerability(cisco-sa-20180620-nxosrbac)).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 104520†). The entries VDB-119747, VDB-119746, VDB-119743 and VDB-119742 are related to this item.
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.5
VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Os command injectionCWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
Timeline
11/27/2017 🔍06/20/2018 🔍
06/20/2018 🔍
06/20/2018 🔍
06/20/2018 🔍
06/21/2018 🔍
03/28/2023 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-20180620-nxosrbac / CSCvd77904
Organization: Cisco
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-0293 (🔍)
SecurityFocus: 104520 - Cisco NX-OS Software CVE-2018-0293 Remote Privilege Escalation Vulnerability
SecurityTracker: 1041169
See also: 🔍
Entry
Created: 06/21/2018 08:27 AMUpdated: 03/28/2023 10:26 AM
Changes: 06/21/2018 08:27 AM (62), 02/20/2020 07:36 PM (5), 03/28/2023 10:26 AM (3)
Complete: 🔍
Cache ID: 44:AFA:40
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