CVE-2023-49294

Asterisk Path Traversal vulnerability

HIGH

7.5

CVSS Score

Published: December 14, 2023 at 07:40 PM UTC

Updated: June 17, 2026 at 06:35 AM UTC

3 products affected across 3 vendorsAsteriskCertified AsteriskAsterisk

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Severity

HIGH7.5

Exploit prediction

EPSS 45%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Asterisk · Digium

95%

v < 18.20.119.0.0 ≤ v < 20.5.121.0.0

Affected range stops below 18.20.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 20.5.1, so it looks safe — our inference, not a vendor statement

Asterisk · Asterisk

60%

v < 18.20.1v < 18.9-cert6v < 20.5.1= 21.0.0

Affected range stops below 18.20.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 18.9-cert6, so it looks safe — our inference, not a vendor statement

Affected range stops below 20.5.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

x_refsource_MISCProduct

Source: [email protected]

https://github.com/asterisk/asterisk/blob/master/main/manager.c#L3757

x_refsource_MISCPatch

Source: [email protected]

https://github.com/asterisk/asterisk/commit/424be345639d75c6cb7d0bd2da5f0f407dbd0bd5

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://github.com/asterisk/asterisk/security/advisories/GHSA-8857-hfmw-vg8f

Source: [email protected]

https://lists.debian.org/debian-lts-announce/2023/12/msg00019.html

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-22

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