Unauthorized proxy modification via shared extension ingestion
Published Jun 2, 2023 · Updated Oct 7, 2024
Authorization bypass in HashiCorp Consul and Consul Enterprise 1.15.0 through 1.15.2 allows remote authenticated users to alter proxy behavior. Shared Lambda and Lua extension ingestion logic applies outbound Lua configuration to remote downstream proxies instead of the configured service's local proxy. The attacker needs service:write permission for one service; exploitation can change traffic handling by proxies for services the account cannot modify.
Summary
What happened
Authorization bypass in HashiCorp Consul and Consul Enterprise 1.15.0 through 1.15.2 allows remote authenticated users to alter proxy behavior. Shared Lambda and Lua extension ingestion logic applies outbound Lua configuration to remote downstream proxies instead of the configured service's local proxy. The attacker needs service:write permission for one service; exploitation can change traffic handling by proxies for services the account cannot modify.
The record
- CVE
- CVE-2023-2816
- Published
- Jun 2, 2023
- Updated
- Oct 7, 2024
- Vendor
- HashiCorp
- Product
- Consul Enterprise
- Classifications
- CWE-266
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 2, 2023CVE publishedPublication date reported by the CVE source.
- Oct 7, 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=1.15.0
- Affected versionversion=1.15.1
- Affected versionversion=1.15.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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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