CVE-2021-32739

Katalog CVE

CVSS 8.8 · High EPSS 1,1%

Kerentanan Privilege Defined With Unsafe Actions pada icinga, debian linux. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. From version 2.4.0 through version 2.12.4, a vulnerability exists that may allow privilege escalation for authenticated API users. With a read-ony user's credentials, an attacker can view most attributes of all config objects including `ticket_salt` of `ApiListener`. This salt is enough to compute a ticket for every possible common name (CN). A ticket, the master node's certificate, and a self-signed certificate are enough to successfully request the desired certificate from Icinga. That certificate may in turn be used to steal an endpoint or API user's identity. Versions 2.12.5 and 2.11.10 both contain a fix the vulnerability. As a workaround, one may either specify queryable types explicitly or filter out ApiListener objects.

Rincian

Terbit di NVD

15 Juli 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-267: Privilege Defined With Unsafe Actions
CWE-269: Improper Privilege Management

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 65,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://icinga.com/blog/2021/07/02/releasing-icinga-2-12-5-2-11-10/ broken link · advisory vendor
• https://github.com/Icinga/icinga2/security/advisories/GHSA-98wp-jc6q-x5q5 exploit · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2021/11/msg00010.html mailing list · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2024/11/msg00010.html