CVE-2021-32739
Summary
| CVE | CVE-2021-32739 |
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| State | PUBLIC |
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| Assigner | [email protected] |
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| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2021-07-15 15:15:00 UTC |
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| Updated | 2021-12-03 02:39:00 UTC |
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| Description | 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. |
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NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
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| Page not found » Icinga |
MISC |
icinga.com |
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| Results of queries for ApiListener objects include the ticket salt which allows in turn to steal (more privileged) identities · Advisory · Icinga/icinga2 · GitHub |
CONFIRM |
github.com |
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| [SECURITY] [DLA 2816-1] icinga2 security update |
MLIST |
lists.debian.org |
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| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 178892 Debian Security Update for icinga2 (DLA 2816-1)
- 184383 Debian Security Update for icinga2 (CVE-2021-32739)
- 750894 OpenSUSE Security Update for icinga2 (openSUSE-SU-2021:1089-1)
