Deserialization in Pivotal Software Spring Batch
CVE-2020-5411
When configured to enable default typing, Jackson contained a deserialization vulnerability that could lead to arbitrary code execution. Jackson fixed this vulnerability by blacklisting known "deserialization gadgets". Spring Batch configures Jackson with global default typing enabled which means that through the previous exploit, arbitrary code could be executed if all of the following is true: * Spring Batch's Jackson support is being leveraged to serialize a job's ExecutionContext. * A malicious user gains write access to the data store used by the JobRepository (where the data to be deserialized is stored). In order to protect against this type of attack, Jackson prevents a set of untrusted gadget classes from being deserialized. Spring Batch should be proactive against blocking unknown "deserialization gadgets" when enabling default typing.
Vulnerability class: Insecure Deserialization
EPSS: 0.019 (77.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Pivotal_software Spring_batch
- Spring By Vmware Batch — versions 4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@pivotal.io (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-5411?
- CVE-2020-5411 is a high-severity vulnerability in Pivotal Software Spring Batch, classified under Deserialization of Untrusted Data. CVSS score: 8.1/10. Published 2020-06-11.
- How severe is CVE-2020-5411?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2020-5411 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.