SSH private keys of the "Remote alert handlers (Linux)" rule were exposed in the rule page's HTML source in Checkmk <= 2.4.0p18 and all versions of Checkmk 2.3.0. This potentially allowed unauthorized triggering of predefined alert handlers on hosts where the handler was deployed.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://checkmk.com/werk/19030 |
|
History
Tue, 23 Dec 2025 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:checkmk:checkmk:2.2.0:*:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:-:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:b1:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:b2:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:b3:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:b4:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:b5:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:b6:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p10:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p11:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p12:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p13:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p14:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p15:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p16:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p17:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p18:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p19:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p1:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p20:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p21:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p22:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p23:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p24:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p25:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p26:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p27:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p28:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p29:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p2:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p30:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p31:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p32:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p33:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p34:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p35:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p36:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p37:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p38:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p39:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p3:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p40:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p41:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p4:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p5:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p6:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p7:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p8:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:p9:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:-:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:b1:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:b2:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:b3:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:b4:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:b5:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:b6:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p10:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p11:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p12:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p13:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p14:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p15:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p16:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p17:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p18:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p1:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p2:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p3:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p4:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p5:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p6:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p7:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p8:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.4.0:p9:*:*:*:*:*:* |
|
| Metrics |
cvssV3_1
|
Thu, 18 Dec 2025 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 18 Dec 2025 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | SSH private keys of the "Remote alert handlers (Linux)" rule were exposed in the rule page's HTML source in Checkmk <= 2.4.0p18 and all versions of Checkmk 2.3.0. This potentially allowed unauthorized triggering of predefined alert handlers on hosts where the handler was deployed. | |
| Title | Exposure of SSH Private Keys in Remote Alert Handlers (Linux) Rule | |
| First Time appeared |
Checkmk
Checkmk checkmk |
|
| Weaknesses | CWE-212 | |
| CPEs | cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:* cpe:2.3:a:checkmk:checkmk:2.3.0:*:*:*:*:*:*:* |
|
| Vendors & Products |
Checkmk
Checkmk checkmk |
|
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: Checkmk
Published: 2025-12-18T14:04:12.809Z
Updated: 2025-12-18T15:28:51.856Z
Reserved: 2025-11-12T09:16:24.095Z
Link: CVE-2025-65000
Updated: 2025-12-18T15:28:43.968Z
Status : Analyzed
Published: 2025-12-18T14:15:59.947
Modified: 2025-12-23T17:04:50.833
Link: CVE-2025-65000
No data.