Vulnerability Details : CVE-2021-29221
Potential exploit
A local privilege escalation vulnerability was discovered in Erlang/OTP prior to version 23.2.3. By adding files to an existing installation's directory, a local attacker could hijack accounts of other users running Erlang programs or possibly coerce a service running with "erlsrv.exe" to execute arbitrary code as Local System. This can occur only under specific conditions on Windows with unsafe filesystem permissions.
Vulnerability category: File inclusionExecute codeGain privilege
Products affected by CVE-2021-29221
- cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-29221
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 30 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-29221
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.2
|
MEDIUM | AV:L/AC:H/Au:N/C:C/I:C/A:C |
1.9
|
10.0
|
NIST | |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
NIST |
CWE ids for CVE-2021-29221
-
The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-29221
-
https://github.com/erlang/otp/releases/tag/OTP-23.2.3
Release OTP 23.2.3 · erlang/otp · GitHubThird Party Advisory
-
https://deepsurface.com/deepsurface-security-advisory-local-privilege-escalation-in-erlang-on-windows-cve-2021-29221/
DeepSurface Security Advisory: Local Privilege Escalation in Erlang on Windows (CVE-2021-29221)Exploit;Third Party Advisory
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