Backup password disclosure via FFDC log buffer
Published Apr 13, 2021 · Updated Aug 3, 2024
Information disclosure in Lenovo XClarity Controller firmware allows remote authenticated users to read a backup password from an FFDC service log. When LXCA performs configuration backup or restore, XCC writes the supplied backup password into an internal log buffer that FFDC collection copies into a service log. Exposure requires a privileged XCC user to generate and retrieve the FFDC log during the roughly ten-minute retention window; direct XCC backup or restore does not capture the password.
Summary
What happened
Information disclosure in Lenovo XClarity Controller firmware allows remote authenticated users to read a backup password from an FFDC service log. When LXCA performs configuration backup or restore, XCC writes the supplied backup password into an internal log buffer that FFDC collection copies into a service log. Exposure requires a privileged XCC user to generate and retrieve the FFDC log during the roughly ten-minute retention window; direct XCC backup or restore does not capture the password.
The record
- CVE
- CVE-2021-3473
- Published
- Apr 13, 2021
- Updated
- Aug 3, 2024
- Vendor
- Lenovo
- Product
- Lenovo XClarity Controller
- Classifications
- CWE-319, T1552.001
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Apr 13, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <1.10 TGBT12Q
- Affected versionversion=unspecified <2.14 PSI338I
- Affected versionversion=unspecified <3.20 TEI378W
- Affected versionversion=unspecified <4.40 TEI3B2P
- Affected versionversion=unspecified <6.00 CDI370Q
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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