CVE-2016-1000027
remote code execution vulnerability in spring-web (Maven)
What is CVE-2016-1000027 About?
Pivotal Spring Framework before 6.0.0 is susceptible to remote code execution (RCE) via Java deserialization of untrusted data. The impact can be severe, allowing attackers to execute arbitrary code. Exploitation may be complex and could require authentication, depending on implementation.
Affected Software
Technical Details
The vulnerability in Pivotal Spring Framework before version 6.0.0 stems from insecure deserialization of untrusted Java data. Specifically, if an application uses Java deserialization on data that an attacker can control, the attacker can submit specially crafted serialized objects. When the Spring Framework attempts to deserialize these objects, it can trigger the execution of arbitrary code on the server. The impact varies depending on how the library is implemented within a product, and an authentication step might be required to deliver the malicious payload.
What is the Impact of CVE-2016-1000027?
Successful exploitation may allow attackers to execute arbitrary code on the server, potentially leading to full system compromise, data exfiltration, or further network attacks.
What is the Exploitability of CVE-2016-1000027?
Exploitation of this vulnerability is of high complexity, as it involves crafting specific gadget chains for Java deserialization. The level of authentication required depends heavily on the specific application's implementation and whether untrusted data is deserialized from an authenticated or unauthenticated source. No specific direct privileges are mentioned. The attack is remote, requiring the ability to transmit a malicious serialized Java object to the application. Special conditions include the application using Java deserialization for untrusted inputs within the Spring Framework context. Risk factors that increase exploitability include the application's direct exposure of deserialization endpoints or processing serialized data from untrusted sources, and the presence of vulnerable libraries in the classpath that can be used to form gadget chains.
What are the Known Public Exploits?
| PoC Author | Link | Commentary |
|---|---|---|
| artem-smotrakov | Link | PoC for CVE-2016-1000027 |
| tina94happy | Link | Mitigated version for CVE-2016-1000027 spring web. |
| yihtserns | Link | Spring Web 5.x with `org.springframework.remoting` package removed, to fix CVE-2016-1000027. |
What are the Available Fixes for CVE-2016-1000027?
Available Upgrade Options
- org.springframework:spring-web
- <6.0.0 → Upgrade to 6.0.0
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Book a demoAdditional Resources
- https://github.com/spring-projects/spring-framework
- https://github.com/spring-projects/spring-framework/issues/24434#issuecomment-579669626
- https://security-tracker.debian.org/tracker/CVE-2016-1000027
- https://www.tenable.com/security/research/tra-2016-20
- https://security.netapp.com/advisory/ntap-20230420-0009
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-1000027
- https://github.com/spring-projects/spring-framework/issues/21680
- https://github.com/spring-projects/spring-framework/issues/24434#issuecomment-582313417
- https://security.netapp.com/advisory/ntap-20230420-0009/
- https://spring.io/blog/2022/05/11/spring-framework-5-3-20-and-5-2-22-available-now
What are Similar Vulnerabilities to CVE-2016-1000027?
Similar Vulnerabilities: CVE-2015-4852 , CVE-2017-3241 , CVE-2017-8917 , CVE-2018-1259 , CVE-2019-10086
