Deserialization of Untrusted Data in SolarWinds Orion Virtual Infrastructure Monitor



Published: 2021-03-31
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2021-27277
CWE ID CWE-502
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Orion Virtual Infrastructure Monitor
Other software / Other software solutions

Vendor SolarWinds

Security Advisory

This security advisory describes one low risk vulnerability.

1) Deserialization of Untrusted Data

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-27277

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

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insecure input validation when processing serialized data in the OneTimeJobSchedulerEventsService WCF service. A local user can pass specially crafted data to the application and execute arbitrary code on the target system with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Orion Virtual Infrastructure Monitor: 2020.2.4

CPE External links

https://www.zerodayinitiative.com/advisories/ZDI-21-373/
https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#Fixed

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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



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