Multiple vulnerabilities in Linaro Automated Validation Architecture (LAVA)



Published: 2023-01-16
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-45132
CVE-2022-44641
CWE-ID CWE-94
CWE-776
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Linaro Automated Validation Architecture (LAVA)
Server applications / Remote management servers, RDP, SSH

Vendor Linaro Limited

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Code Injection

EUVDB-ID: #VU71186

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-45132

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation when handling Jinja2 templates. A remote user can submit a specially crafted Jinja2 template to the REST API endpoint for validating device configuration files in lava-server 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

Linaro Automated Validation Architecture (LAVA): 2020.01 - 2022.11

External links

http://lists.lavasoftware.org/archives/list/lava-announce@lists.lavasoftware.org/thread/WHXGQMIZAPW3GCQEXYHC32N2ZAAAIYCY/
http://podalirius.net/en/articles/python-vulnerabilities-code-execution-in-jinja-templates/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) XML Entity Expansion

EUVDB-ID: #VU71184

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-44641

CWE-ID: CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to XML entity expansion when handling XMLRPC requests. A remote authenticated user can cause a recursive XML entity expansion and perform denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linaro Automated Validation Architecture (LAVA): 2020.01 - 2022.10

External links

http://lists.lavasoftware.org/archives/list/lava-announce@lists.lavasoftware.org/thread/WHXGQMIZAPW3GCQEXYHC32N2ZAAAIYCY/
http://www.debian.org/security/2023/dsa-5318


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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