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CVE-2022-0217

Published: Aug 26, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-776
NVD MITRE
7.5CVSSHIGH
EPSS Score
4.4%
Top 9.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

It was discovered that an internal Prosody library to load XML based on libexpat does not properly restrict the XML features allowed in parsed XML data. Given suitable attacker input, this results in expansion of recursive entity references from DTDs (CWE-776). In addition, depending on the libexpat version used, it may also allow injections using XML External Entity References (CWE-611).

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-776CWE-611

Affected Products

prosodyprosody
On-prem
Communications / messaging-chat
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
FedoraFedora Project
On-premOS
Operating Systems / linux-distro
ProsodyProsody dev team
On-prem
Communications / messaging-chat
prosodyn/a
prosodyoss-projectCommunicationsaka mod auth ldap, mod auth ldap2
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
fedora projectoss-projectUSOperating Systemsaka fedora
prosody dev teamoss-projectCommunicationsaka prosody

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

3 techniques
Collection
Impact
Initial Access
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=2040639
bugzilla.redhat.com
https://prosody.im/security/advisory_20220113/
prosody.im
https://prosody.im/security/advisory_20220113/1.patch
prosody.im
and 8 more references View all →

Timeline

Published
Aug 26, 2022
Last Updated
Nov 21, 2024

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