CVE-2021-27277
This vulnerability allows local attackers to escalate privileges on affected installations of SolarWinds Orion Virtual Infrastructure Monitor 2020.2.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.09%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.09% probability · 64th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- solarwinds/orion platform
- Source
- zdi-disclosures@trendmicro.com
References
- https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#FixedRelease Notes, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-373/Third Party Advisory, VDB Entry
- https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#FixedRelease Notes, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-373/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.