T03 · Remote Payload Retrieval and Execution
- Location
SKILL.md:66- Finding
Remote installer is downloaded and executed directly through Bash
- Content
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= 3.3.1) aliyun version ``` ``` ### Technical Analysis The Linux installation command pipes mutable network content directly into Bash. The script is neither downloaded for inspection nor authenticated through a pinned checksum or digital signature. HTTPS protects the connection in transit under normal conditions, but it does not ensure that the script remains identical to the version reviewed with this Skill. A compromise of the hosting infrastructure, CDN, publishing account, DNS resolution, or certificate trust chain could change the effective payload after the Skill has passed review. Executing a remote installer is not inherently required for the declared DataWorks workspace-management functionality. The included installation guide already describes standalone binary installation, so direct remote shell execution exceeds the minimum execution channel necessary. ### Attack Path 1. An attacker compromises or gains publishing access to `aliyuncli.alicdn.com`, its CDN path, or the referenced `install.sh`. 2. The attacker replaces the installer with a modified shell payload. 3. A user or Agent follows the documented prerequisite command. 4. `curl` retrieves the attacker-controlled response and pipes it directly to Bash. 5. The payload executes with the privileges and environment of the invoking user. 6. The payload can inspect local cloud configuration, modify executable files, install persistence, or invoke cloud APIs using accessible credentials. ### Impact Assessment Successful exploitation provides arbitrary command execution under the invoking account. The payload may access files readab ...[truncated 436 chars]- Remediation
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