Vulnerability · Published Apr 22, 2021 · Assigned by zdi
CVE-2021-27277
High 7.8
In plain English
A high-severity unsafe deserialization in Orion Virtual Infrastructure Monitor from SolarWinds. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SolarWinds | Orion Virtual Infrastructure Monitor | 2020.2 |
Weakness: CWE-502 · Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H