PT-2021-4782 · Xstream+7 · Xstream+7

Published 2021-03-12 · Updated 2024-08-22 · CVE-2021-21347

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions XStream versions prior to 1.4.16

Description The issue concerns a Java library used to serialize objects to XML and back again. It may allow a remote attacker to load and execute arbitrary code from a remote host by manipulating the processed input stream. Users who set up the security framework with a whitelist limited to the minimal required types are not affected. The vulnerability is related to unlimited loading of dangerous file types.

Recommendations For versions prior to 1.4.16, update to at least version 1.4.16 to resolve the issue. As a temporary workaround, consider setting up XStream's security framework with a whitelist limited to the minimal required types to prevent exploitation.

Exploit

Fix

Unrestricted File Upload

Deserialization of Untrusted Data

Weakness Enumeration

CWE-434

CWE-502

Related Identifiers

ALT-PU-2022-7660

BDU:2021-05501

BIT-ACTIVEMQ-2021-21347

CESA-2021_1354

CVE-2021-21347

DLA-2616-1

DSA-5004-1

ELSA-2021-1354

GHSA-QPFQ-PH7R-QV6F

MGASA-2021-0370

OESA-2021-1185

OPENSUSE-SU-2021:0832-1

OPENSUSE-SU-2021:1840-1

OPENSUSE-SU-2021_0832-1

OPENSUSE-SU-2021_1840-1

OPENSUSE-SU-2024:10592-1

RHSA-2021:1354

RHSA-2021_1354

SUSE-SU-2021:1840-1

SUSE-SU-2021:1840-2

USN-4943-1

USN-6978-1

Affected Products

Alt Linux

Astra Linux

Centos

Linuxmint

Red Hat

Suse

Ubuntu

Xstream

References · 123

• 🔥 https://x-stream.github.io/CVE-2021-21347.html · Exploit
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4943-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05501 · Security Note
• https://debian.org/lts/security/2021/dla-2616 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21346 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21341 · Security Note
• https://ubuntu.com/security/CVE-2021-21345 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-21347 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-21347 · Security Note
• https://ubuntu.com/security/CVE-2021-21347 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21351 · Security Note
• https://osv.dev/vulnerability/MGASA-2021-0370 · Vendor Advisory