CVE-2021-327398.8HighCWE-267

CVE-2021-32739: Results of queries for ApiListener objects include the ticket salt which allows in turn to steal (more privileged) identities

Icinga · icinga2

Affected: icinga2 · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

1.1%probability of exploitation in the next 30 days

67th percentile

050100

Higher than 67% of scored CVEs

8.8HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Icinga · icinga2>= 2.4.0, <= 2.12.4

On the Atlas

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Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Privilege Defined With Unsafe Actions · Access Control
Vendor: Icinga
Published: July 2021
Band: Possible (1 to 10%), July 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-32739 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.