Deserialization of Untrusted Data
CVE-2022-25845

8.1HIGH

Key Information:

Vendor

Alibaba

Status
Com.alibaba:fastjson
Vendor
CVE Published:
10 June 2022

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 88%

What is CVE-2022-25845?

The package com.alibaba:fastjson before 1.2.83 are vulnerable to Deserialization of Untrusted Data by bypassing the default autoType shutdown restrictions, which is possible under certain conditions. Exploiting this vulnerability allows attacking remote servers. Workaround: If upgrading is not possible, you can enable safeMode.

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Deploy the Patch

Affected Version(s)

com.alibaba:fastjson < 1.2.83

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

FastjsonVulns
Created by hosch3n

CVE-2022-25845-In-Spring
Created by luelueking

CVE-2022-25845-exploit
Created by nerowander

References

https://snyk.io/vuln/SNYK-JAVA-COMALIBABA-2859222
x_refsource_MISC
https://www.ddosi.org/fastjson-poc/
x_refsource_MISC
https://github.com/alibaba/fastjson/commit/8f3410f81cbd43...
x_refsource_MISC

EPSS Score

88% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Unknown
JSON
.