jackson-databind: InetSocketAddress deserialization triggers eager DNS resolution (SSRF)
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2.18.8, 2.21.4, 3.1.4
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.0.0 until 2.18.8, 2.21.4, and 3.1.4, JDKFromStringDeserializer constructed InetSocketAddress with new InetSocketAddress(host, port), which performs eager DNS name resolution for hostname inputs at deserialization time. An application that binds untrusted JSON into a type containing an InetSocketAddress field issues an attacker-chosen DNS query during readValue, before any application-level validation or connect logic. The fix uses InetSocketAddress.createUnresolved(host, port), deferring DNS to an explicit connect. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- FasterXML jackson-databind
From 2.0.0 · fixed in 2.18.8; From 2.19.0 · fixed in 2.21.4; From 3.0.0 · fixed in 3.1.4
- com.fasterxml.jackson.core:jackson-databindMaven
From 2.0.0 · fixed in 2.18.8
- com.fasterxml.jackson.core:jackson-databindMaven
From 2.19.0 · fixed in 2.21.4
- com.fasterxml.jackson.core:jackson-databindMaven
From 3.0.0 · fixed in 3.1.4
- tools.jackson.core:jackson-databindMaven
From 2.19.0 · fixed in 2.21.4
- tools.jackson.core:jackson-databindMaven
From 3.0.0 · fixed in 3.1.4