Deserialization in Pippo
CVE-2018-18628
An issue was discovered in Pippo 1.11.0. The function SerializationSessionDataTranscoder.decode() calls ObjectInputStream.readObject() to deserialize a SessionData object without checking the object types. An attacker can create a malicious object, base64 encode it, and place it in the PIPPO_SESSION field of a cookie. Sending this cookie may lead to remote code execution.
Vulnerability class: Insecure Deserialization
EPSS: 0.055 (91.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Pippo — versions 1.11.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-18628?
- CVE-2018-18628 is a critical-severity vulnerability in Pippo, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2018-10-23.
- How severe is CVE-2018-18628?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-18628 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.