Description
In Apache ShardingSphere(incubator) 4.0.0-RC3 and 4.0.0, the ShardingSphere's web console uses the SnakeYAML library for parsing YAML inputs to load datasource configuration. SnakeYAML allows to unmarshal data to a Java type By using the YAML tag. Unmarshalling untrusted data can lead to security flaws of RCE.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache ShardingSphere(incubator) | 4.0.0-RC3, 4.0.0 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 4 repositories
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jas502n/CVE-2020-1947 ★ 31 · Mar 11, 2020
Apache ShardingSphere UI YAML解析远程代码执行漏洞
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wsfengfan/CVE-2020-1947 ★ 4 · Mar 11, 2020
CVE-2020-1947 Python POC
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StarkChristmas/CVE-2020-1947 ★ 1 · May 29, 2020
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shadowsock5/ShardingSphere_CVE-2020-1947 ★ 1 · Mar 13, 2020
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.shardingsphere:shardingsphere | >= 4.0.0-RC3, < 4.0.1 | 4.0.1 | GHSA-v54f-xcmp-43cr |