ZXMP M721: Insertion of Sensitive Information into Log File
CVE-2022-23141 is a high-severity insertion of sensitive information into log file vulnerability in ZXMP M721, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected ZXMP M721 versions: COMMOND21BOOTV100004_LS1045. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.8% chance of exploitation within 30 days, higher than 57% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of ZXMP M721 you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on support.zte.com.cn 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 |
|---|---|---|---|
| ZXMP M721 | ZXMP M721 | COMMOND21BOOTV100004_LS1045 | Not stated |
| ZTE | Zxmp M721 Firmware | commond21bootv100004_ls1045 | Not stated |
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
- UnchangedImpact stays within the vulnerable component.
- 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:U/C:H/I:N/A:N. Scored by NVD.
Official description
ZXMP M721 has an information leak vulnerability. Since the serial port authentication on the ZBOOT interface is not effective although it is enabled, an attacker could use this vulnerability to log in to the device to obtain 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.
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in ZXMP M721
- 8.8 High severity
Recent Insertion of Sensitive Information into Log File vulnerabilities
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.1 High severity
- 7.5 High severity
- 7.5 High severity
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