CVE-2020-24719Couchbase Server OS Command Injection
Exposed Erlang Cookie could lead to Remote Command Execution (RCE) attack.
Published Nov 12, 2020 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2020-24719 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Couchbase Server.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 23% probability of exploitation in the next 30 days.
- Fixed versions are available, including Couchbase Server 6.6.0.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
23%
Higher than 97.7% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
49/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
Exposed Erlang Cookie could lead to Remote Command Execution (RCE) attack. Communication between Erlang nodes is done by exchanging a shared secret (aka "magic cookie"). There are cases where the magic cookie is included in the content of the logs. An attacker can use the cookie to attach to an Erlang node and run OS level commands on the system running the Erlang node. Affects version: 6.5.1. Fix version: 6.6.0.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Couchbase ServerCouchbase | See advisory | 6.6.0 |
Patched Releases
Couchbase Server
6.6.0
Timeline
Publicly disclosed
Nov 12, 2020
Last updated
Nov 21, 2024
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- advisorycouchbase.com · security
- exploitMSF erlang_cookie_rce.rb
FAQ
Common Questions.
Exposed Erlang Cookie could lead to Remote Command Execution (RCE) attack.
Affected: Couchbase Server. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Couchbase Server 6.6.0.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2020-24719 On Your Attack Surface?
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