Cisco Data Center Network Manager: Insertion of Sensitive Information into Log File
CVE-2024-20490 is a high-severity insertion of sensitive information into log file vulnerability in Cisco Data Center Network Manager from Cisco, with a CVSS 3.1 base score of 8.6 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Cisco Data Center Network Manager versions: 12.1.1e; 12.1.1p; 12.1.2e, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.29% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Nexus Dashboard Fabric Controller to 12.2.2.241 or a later version.
- Update Nexus Dashboard Insights to 6.4.0 or 6.5.1.32, whichever matches your release line, or a later version.
- Update Nexus Dashboard Orchestrator to 4.2\(3o\) or 4.4.1.1012, whichever matches your release line, or a later version.
- Read the advisory on sec.cloudapps.cisco.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Cisco | Cisco Data Center Network Manager | 12.1.1e; 12.1.1p; 12.1.2e; 12.1.2p; 12.1.3b; 12.2.1; 12.2.2 | Not stated |
| Cisco | Cisco Nexus Dashboard Orchestrator | 1.0(1i); 1.0(2b); 3.7(1d); 3.7(1g); 3.7(1h); 3.7(1j); 3.7(1i); 3.7(1k); and 17 more ranges | Not stated |
| Cisco | Nexus Dashboard Fabric Controller | 12.1.0 up to, but not including, 12.2.2.241 | 12.2.2.241 |
| Cisco | Nexus Dashboard Insights | before 6.4.0; 6.5.0 up to, but not including, 6.5.1.32 | 6.4.0, 6.5.1.32 |
| Cisco | Nexus Dashboard Orchestrator | before 4.2\(3o\); 4.4.0 up to, but not including, 4.4.1.1012 | 4.2\(3o\), 4.4.1.1012 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 6.3 | Medium | CNA (cisco.com) |
| CVSS 3.1 | 8.6 | High | NVD |
Official description
A vulnerability in a logging function of Cisco Nexus Dashboard Fabric Controller (NDFC) and Cisco Nexus Dashboard Orchestrator (NDO) could allow an attacker with access to a tech support file to view sensitive information. This vulnerability exists because HTTP proxy credentials could be recorded in an internal log that is stored in the tech support file. An attacker could exploit this vulnerability by accessing a tech support file that is generated from an affected system. A successful exploit could allow the attacker to view HTTP proxy server admin credentials in clear text that are configured on Nexus Dashboard to reach an external network. Note: Best practice is to store debug logs and tech support files safely and to share them only with trusted parties because they may contain sensitive information.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Insertion of Sensitive Information into Log File
The product writes sensitive information to a log file.
How developers prevent this class of flaw
- Consider seriously the sensitivity of the information written into log files. Do not write secrets into the log files.
- Remove debug log files before deploying the application into production.
- Protect log files against unauthorized read/write.
More Insertion of Sensitive Information into Log File vulnerabilities (CWE-532)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in Cisco Data Center Network Manager
- 8.7 High severity
- 8.8 High severity
- 8.8 High severity
- 8.6 High severity
- 8.8 High severity
- 7.5 High severity
Recent Insertion of Sensitive Information into Log File vulnerabilities
- 8.6 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 8.2 High severity
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