CVE-2021-27277: SolarWinds Orion Virtual Infrastructure Monitor OneTimeJobSchedulerEventsService Deserialization of Untrusted Data Privilege Escalation Vulnerability
First published: Thu Apr 22 2021(Updated: )
This vulnerability allows local attackers to escalate privileges on affected installations of SolarWinds Orion Virtual Infrastructure Monitor 2020.2. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the OneTimeJobSchedulerEventsService WCF service. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-11955.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SolarWinds Orion Platform | =2020.2 | |
| SolarWinds Orion Virtual Infrastructure Monitor |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this SolarWinds vulnerability?
The vulnerability ID for this SolarWinds vulnerability is CVE-2021-27277.
What is the severity rating of CVE-2021-27277?
CVE-2021-27277 has a severity rating of 7.8, which is considered high.
What is the affected software for CVE-2021-27277?
The affected software for CVE-2021-27277 is SolarWinds Orion Virtual Infrastructure Monitor 2020.2.
How can an attacker exploit CVE-2021-27277?
To exploit CVE-2021-27277, an attacker must first obtain the ability to execute low-privileged code on the target system.
Are there any references for CVE-2021-27277?
Yes, you can find references for CVE-2021-27277 at the following links: [Reference 1](https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#Fixed), [Reference 2](https://www.zerodayinitiative.com/advisories/ZDI-21-373/).
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