Unauthenticated code execution via exposed Redis routing
Published Aug 9, 2021 · Updated Sep 17, 2024
Remote code execution in Dell OpenManage Enterprise 3.4 through 3.6.1 allows remote attackers on the same subnet to gain container shells. Enabled IP forwarding and incorrect firewall rules expose internal Redis, whose unauthenticated replication loads attacker code before a pivot into trust-authenticated PostgreSQL. Attackers must share the target subnet without an intervening gateway; the chain grants database access, administrator authentication bypass, and code execution in Redis and PostgreSQL containers.
Summary
What happened
Remote code execution in Dell OpenManage Enterprise 3.4 through 3.6.1 allows remote attackers on the same subnet to gain container shells. Enabled IP forwarding and incorrect firewall rules expose internal Redis, whose unauthenticated replication loads attacker code before a pivot into trust-authenticated PostgreSQL. Attackers must share the target subnet without an intervening gateway; the chain grants database access, administrator authentication bypass, and code execution in Redis and PostgreSQL containers.
The record
- CVE
- CVE-2021-21596
- Published
- Aug 9, 2021
- Updated
- Sep 17, 2024
- Vendor
- Dell
- Product
- Dell OpenManage Enterprise
- Classifications
- CWE-200, T1210
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 9, 2021CVE publishedPublication date reported by the CVE source.
- Sep 17, 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 <3.6.2
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
- Redis-to-PostgreSQL exploit chain demonstrationfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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