Unauthenticated code execution via unrestricted file upload
Published Feb 25, 2022 · Updated Aug 3, 2024
Improper input validation in GabiaCNS Firstmall allows remote attackers to execute code through the navercheckout_add function. The function accepts a malicious file without checking its extension, while board delete and write paths accept unvalidated filenames and paths that permit removal of the configuration file enforcing validation. The network path requires no authentication or user interaction and runs attacker-supplied code with the storefront application's privileges.
Summary
What happened
Improper input validation in GabiaCNS Firstmall allows remote attackers to execute code through the navercheckout_add function. The function accepts a malicious file without checking its extension, while board delete and write paths accept unvalidated filenames and paths that permit removal of the configuration file enforcing validation. The network path requires no authentication or user interaction and runs attacker-supplied code with the storefront application's privileges.
The record
- CVE
- CVE-2021-26617
- Published
- Feb 25, 2022
- Updated
- Aug 3, 2024
- Vendor
- GabiaCNS, Inc.
- Product
- Firstmall
- Classifications
- CWE-20, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 25, 2022CVE 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?
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- Affected versionversion=multilingual latest version
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.
Public exploit references
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Technologies
Your stack
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Your stack
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