Is CVE-2019-18790 in the CISA KEV catalog?

No. CVE-2019-18790 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-18790?

CVE-2019-18790 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2019-18790?

CVE-2019-18790 has an EPSS score of 2.05% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-18790?

Upgrade asterisk on debian 11 to 1:16.10.0~dfsg-1 or later.

CVE & CISA-KEV Catalog

CVE-2019-18790

MEDIUMEPSS 79th pctl

6.5

CVSS v3

NVD

Description

An issue was discovered in channels/chan_sip.c in Sangoma Asterisk 13.x before 13.29.2, 16.x before 16.6.2, and 17.x before 17.0.1, and Certified Asterisk 13.21 before cert5. A SIP request can be sent to Asterisk that can change a SIP peer's IP address. A REGISTER does not need to occur, and calls can be hijacked as a result. The only thing that needs to be known is the peer's name; authentication details such as passwords do not need to be known. This vulnerability is only exploitable when the nat option is set to the default, or auto_force_rport.

CWE-862Missing Authorization

How to fix

Remediation Available

asteriskDebian

Fixed in:1:16.10.0~dfsg-1CVE-2019-18790

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploit Intelligence

2.05%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Patch1

downloads.asterisk.org

Vendor Advisory1

asterisk.org

Third-Party Advisory2

Related Vulnerabilities

Other CWE-862 (Missing Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-39226	Critical	9.8	100%	KEV	Fix
CVE-2022-0543	Critical	10.0	100%	KEV	Fix
CVE-2021-21978	Critical	9.8	99%	-	Fix
CVE-2023-52163	High	8.8	96%	KEV	-
CVE-2022-1329	High	8.8	93%	-	-
CVE-2023-6875	Critical	9.8	90%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.