CVE-2020-26547

Monal before 4.9 does not implement proper sender verification on MAM and Message Carbon (XEP-0280) results. This allows a remote attacker (able to send stanzas to a victim) to inject arbitrary messages into the local history, with full control over the sender and receiver displayed to the victim.

CVSS v3 9.8 CRITICAL
CVSS v2.0 5.0 MEDIUM

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/anurodhp/Monal/commits/develop	Third Party Advisory
https://monal.im/blog/cve-2020-26547/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:monal:monal:*:*:*:*:*:iphone_os:*:*

History

No history.

Information

Published : 2021-02-01 02:15

Updated : 2021-02-05 16:16

NVD link : CVE-2020-26547

Mitre link : CVE-2020-26547

CVE.ORG link : CVE-2020-26547

JSON object : View

Products Affected

monal

monal

CWE

CWE-345

Insufficient Verification of Data Authenticity

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