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Fencer Vulns
medium 4.9

CVE-2023-49294 json

Asterisk Path Traversal vulnerability

published 2023-12-14 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-53282

cvss
4.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
45.3%
EPSS 45.3% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, it is possible to read any arbitrary file even when the `live_dangerously` is not enabled. This allows arbitrary files to be read. Asterisk versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, contain a fix for this issue.

Patch / fix

  • digium asterisk 18.20.1, 20.5.1
  • asterisk Debian 14 1:20.5.1~dfsg+~cs6.13.40431414-1

debian advisories DEBIAN-CVE-2023-49294

  • asterisk Alpine 3.18, Alpine 3.17, Alpine 3.16 18.20.2-r0
  • asterisk Alpine 3.24, Alpine 3.23, Alpine 3.22 +3 more 20.5.1-r0

alpine advisories ALPINE-CVE-2023-49294

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-49294 updated cvss 4.9

asterisk: access to arbitrary files via directory traversal

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

45.29% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • asterisk asterisk

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.