certfr_avis - CERTFR-2022-AVI-340

CERTFR-2022-AVI-340

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité a été découverte dans Nextcloud Calendar. Elle permet à un attaquant de provoquer une exécution de code arbitraire.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None

Impacted products

	Vendor	Product	Description
	Nextcloud	N/A	Nextcloud versions antérieures à 3.2.2

References

Title

Publication Time

CVE-2022-24838 (GCVE-0-2022-24838)

Vulnerability from cvelistv5 – Published: 2022-04-11 20:25 – Updated: 2025-04-23 18:40

Title

Command Injection in Appointment Emails for Nextcloud Calendar

Summary

Nextcloud Calendar is a calendar application for the nextcloud framework. SMTP Command Injection in Appointment Emails via Newlines: as newlines and special characters are not sanitized in the email value in the JSON request, a malicious attacker can inject newlines to break out of the `RCPT TO:<BOOKING USER'S EMAIL> ` SMTP command and begin injecting arbitrary SMTP commands. It is recommended that Calendar is upgraded to 3.2.2. There are no workaround available.

Severity ?

5.3 (Medium)


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

CWE

CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/nextcloud/security-advisories/…	x_refsource_CONFIRM
	https://github.com/nextcloud/calendar/pull/4073	x_refsource_MISC
	https://github.com/nextcloud/calendar/commit/7b70…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	nextcloud	security-advisories	Affected: < 3.2.2

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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