{"items":[{"id":"NVI-00013940","kind":"vulnerability","title":"Canonical ADSys Uses a Less Trusted Source","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-crm4-q7v4-c2r2","CVE-2026-12249"],"plain_summary":"GitHub lists this reviewed advisory for github.com/ubuntu/adsys. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-14e84f73dc81963cccec435a7ca7ffd9"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-21T22:27:11.000Z","value":"9 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-213ad558a49372bb5ee681d63728dd66"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.143%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.03587. Missing scores are unknown.","source_id":"sr-14e84f73dc81963cccec435a7ca7ffd9"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-213ad558a49372bb5ee681d63728dd66","url":"https://github.com/advisories/GHSA-crm4-q7v4-c2r2","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-crm4-q7v4-c2r2","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T14:29:31.527Z"},{"id":"sr-14e84f73dc81963cccec435a7ca7ffd9","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-12249","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.847Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-213ad558a49372bb5ee681d63728dd66"],"technology":"github.com/ubuntu/adsys","known_exclusions":[],"conditions_summary":"An issue was discovered in Canonical ADSys upstream versions through v0.16.2. During Active Directory Certificate Services (AD CS) certificate auto-enrollment via the vendored Samba client script (internal/policies/certificate/python/vendor_samba/gp/gp_cert_auto_enroll_ext.py), ADSys utilizes a plaintext HTTP connection (http://) instead of a secure HTTPS connection (https://) to request the CA certificate from the Active Directory Certificate Services server (GetCACert). An unauthenticated network attacker positioned between the managed Ubuntu host and the configured AD CS CA hostname can conduct a Man-in-the-Middle (MITM) attack. By intercepting the plaintext HTTP request, the attacker can supply an arbitrary, attacker-controlled Root CA certificate. Because the system automatically accepts this certificate and registers it into the local system trust store via update-ca-certificates, this results in system-wide trust store poisoning. Consequently, TLS clients utilizing the operating system trust store on the affected machine will accept rogue certificates for arbitrary domains, enabling persistent decryption and interception of subsequent TLS connections. This issue is resolved ","public_affected_ranges":["< 0.16.3-0.20250318112551-8b1939f96d38"]}],"null_published_at":"2026-11-04T10:04:47.619Z","source_updated_at":"2026-09-21T22:27:11.000Z","source_disclosed_at":"2026-06-22T18:34:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T14:29:31.527Z"},{"id":"NVI-00013940","kind":"vulnerability","title":"Canonical ADSys Uses a Less Trusted Source","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-crm4-q7v4-c2r2","CVE-2026-12249"],"plain_summary":"GitHub lists this reviewed advisory for github.com/ubuntu/adsys. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-213ad558a49372bb5ee681d63728dd66"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-21T22:27:11.000Z","value":"9 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-213ad558a49372bb5ee681d63728dd66"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-213ad558a49372bb5ee681d63728dd66","url":"https://github.com/advisories/GHSA-crm4-q7v4-c2r2","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-crm4-q7v4-c2r2","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T14:29:31.527Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-213ad558a49372bb5ee681d63728dd66"],"technology":"github.com/ubuntu/adsys","known_exclusions":[],"conditions_summary":"An issue was discovered in Canonical ADSys upstream versions through v0.16.2. During Active Directory Certificate Services (AD CS) certificate auto-enrollment via the vendored Samba client script (internal/policies/certificate/python/vendor_samba/gp/gp_cert_auto_enroll_ext.py), ADSys utilizes a plaintext HTTP connection (http://) instead of a secure HTTPS connection (https://) to request the CA certificate from the Active Directory Certificate Services server (GetCACert). An unauthenticated network attacker positioned between the managed Ubuntu host and the configured AD CS CA hostname can conduct a Man-in-the-Middle (MITM) attack. By intercepting the plaintext HTTP request, the attacker can supply an arbitrary, attacker-controlled Root CA certificate. Because the system automatically accepts this certificate and registers it into the local system trust store via update-ca-certificates, this results in system-wide trust store poisoning. Consequently, TLS clients utilizing the operating system trust store on the affected machine will accept rogue certificates for arbitrary domains, enabling persistent decryption and interception of subsequent TLS connections. This issue is resolved ","public_affected_ranges":["< 0.16.3-0.20250318112551-8b1939f96d38"]}],"null_published_at":"2026-11-02T10:00:37.177Z","source_updated_at":"2026-09-21T22:27:11.000Z","source_disclosed_at":"2026-06-22T18:34:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-01T14:29:31.527Z"}],"next_cursor":null,"snapshot_revision":"42594"}