Remote code execution in xstream API

Published: 2019-07-23 | Updated: 2019-11-20

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2019-10173 CVE-2013-7285
CWE-ID	CWE-502 CWE-20
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #2 is available.
Vulnerable software	xstream Universal components / Libraries / Libraries used by multiple products
Vendor	XStream

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Deserialization of Untrusted Data

EUVDB-ID: #VU22875

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-10173

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data passed in XML or JSON formats within the xstream API. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

xstream: 1.4.10

CPE2.3

cpe:2.3:a:x-stream:xstream:1.4.10:*:*:*:*:*:*:*

External links

https://x-stream.github.io/changes.html#1.4.11
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10173

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Input validation error

EUVDB-ID: #VU22876

Risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2013-7285

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes