Terminal code execution via ANSI log injection
Published Jul 31, 2023 · Updated Feb 28, 2025
Improper log neutralization in Splunk SOAR before 6.1.0 allows remote attackers to inject ANSI escape codes through HTTP requests. A web endpoint writes attacker-controlled escape sequences into SOAR log files without neutralizing terminal control characters. Exploitation requires an ANSI-capable terminal user to read the poisoned log and execute the presented code, which then runs with that user's permissions.
Summary
What happened
Improper log neutralization in Splunk SOAR before 6.1.0 allows remote attackers to inject ANSI escape codes through HTTP requests. A web endpoint writes attacker-controlled escape sequences into SOAR log files without neutralizing terminal control characters. Exploitation requires an ANSI-capable terminal user to read the poisoned log and execute the presented code, which then runs with that user's permissions.
The record
- CVE
- CVE-2023-3997
- Published
- Jul 31, 2023
- Updated
- Feb 28, 2025
- Vendor
- Splunk, Inc.
- Product
- Splunk SOAR (On-premises)
- Classifications
- CWE-116, CWE-117, T1204
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 31, 2023CVE publishedPublication date reported by the CVE source.
- Feb 28, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=- <6.1.0
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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