Vulnerability Details : CVE-2021-27277
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.
Vulnerability category: Execute code
Products affected by CVE-2021-27277
- cpe:2.3:a:solarwinds:orion_platform:2020.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27277
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 43 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27277
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST | |
|
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
Zero Day Initiative | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-27277
-
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.Assigned by: zdi-disclosures@trendmicro.com (Primary)
References for CVE-2021-27277
-
https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#Fixed
SAM 2020.2.5 Release NotesRelease Notes;Vendor Advisory
-
https://www.zerodayinitiative.com/advisories/ZDI-21-373/
ZDI-21-373 | Zero Day InitiativeThird Party Advisory;VDB Entry
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