High severity · published Apr 22, 2021
CVE-2021-27277
This vulnerability allows local attackers to escalate privileges on affected installations of SolarWinds Orion Virtual Infrastructure Monitor 2020.2
7.8
CVSS
1.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Orion Platform · SolarWinds
2020.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27277
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27277
Release Notes
https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#Fixed
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-373/
More from Orion Platform
9.8
CVE-2020-10148
SolarWinds Orion API is vulnerable to an authentication bypass that could allow a remote attacker to execute API commands
9.8
CVE-2021-27258
This vulnerability allows remote attackers to execute escalate privileges on affected installations of SolarWinds Orion Platform 2020.2
9.8
CVE-2021-25274
The Collector Service in SolarWinds Orion Platform before 2020.2.4 uses MSMQ (Microsoft Message Queue) and doesn't set permissions on its private queues
9.8
CVE-2019-9546
SolarWinds Orion Platform before 2018.4 Hotfix 2 allows privilege escalation through the RabbitMQ service
9.6
CVE-2021-35222
This vulnerability allows attackers to impersonate users and perform arbitrary actions leading to a Remote Code Execution (RCE) from the Alerts Settings page