8.1high
CVE-2017-3203
Pivotal/Spring Spring-flex's Action Message Format (AMF3) Java implementation is vulnerable to insecure deserialization
Also known as GHSA-8v4h-j42h-wfhc
Published 8 y ago · modified 4 mo ago · JSON
CVSS
8.1
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
6.2%
percentile 94%
Public exploits
0
none known
Summary
The Java implementations of AMF3 deserializers in Pivotal/Spring Spring-flex derive class instances from java.io.Externalizable rather than the AMF3 specification's recommendation of flash.utils.IExternalizable. A remote attacker with the ability to spoof or control an RMI server connection may be able to send serialized Java objects that execute arbitrary code when deserialized.
Exploit prediction (EPSS)
6.23% probability of exploitation in the next 30 days, higher than 94% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| GitHub | 3.0 | 8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.springframework.flex:spring-flex | <=1.5.2.RELEASE | no fix listed |
Affected products
- Pivotal/Spring Spring-flex
Classification
- Weakness
- CWE-502 Deserialization of Untrusted Data
References
- codewhitesec.blogspot.com /2017/04/amf.html · x_refsource_MISC, x_transferred
- kb.cert.org /vuls/id/307983 · third-party-advisory, x_refsource_CERT-VN, x_transferred
- securityweek.com /flaws-java-amf-libraries-allow-remote-code-execution · x_refsource_MISC, x_transferred
- securityfocus.com /bid/97376 · vdb-entry, x_refsource_BID, x_transferred
- nvd.nist.gov /vuln/detail/CVE-2017-3203 · advisory
Sources
- CVE List: CVE-2017-3203
- GitHub Advisory: GHSA-8v4h-j42h-wfhc
- NVD: CVE-2017-3203
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