Zoom Client for Meetings for Android: XML Injection
CVE-2022-22784 is a high-severity XML injection vulnerability in Zoom Client for Meetings for Android from Zoom Video Communications, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists version 5.10.0 as the first without the flaw, so updating Zoom Client for Meetings for Android to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 4.08% chance of exploitation within 30 days, which is in the top 9.13% of all scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Zoom Client for Meetings for Android to 5.10.0 or a later version.
- Update Zoom Client for Meetings for iOS to 5.10.0 or a later version.
- Update Zoom Client for Meetings for Linux to 5.10.0 or a later version.
- Read the advisory on explore.zoom.us for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Zoom Video Communications | Zoom Client for Meetings for Android | before 5.10.0 | 5.10.0 |
| Zoom Video Communications | Zoom Client for Meetings for iOS | before 5.10.0 | 5.10.0 |
| Zoom Video Communications | Zoom Client for Meetings for Linux | before 5.10.0 | 5.10.0 |
| Zoom Video Communications | Zoom Client for Meetings for MacOS | before 5.10.0 | 5.10.0 |
| Zoom Video Communications | Zoom Client for Meetings for Windows | before 5.10.0 | 5.10.0 |
| Zoom | Meetings | before 5.10.0 | 5.10.0 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.1 | High | CNA (zoom.us) |
| CVSS 3.1 | 8.1 | High | NVD |
| CVSS 2.0 | 5.5 | Medium | NVD |
Official description
The Zoom Client for Meetings (for Android, iOS, Linux, MacOS, and Windows) before version 5.10.0 failed to properly parse XML stanzas in XMPP messages. This can allow a malicious user to break out of the current XMPP message context and create a new message context to have the receiving users client perform a variety of actions.This issue could be used in a more sophisticated attack to forge XMPP messages from the server.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: XML Injection
The product does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Zoom Client for Meetings for Android
- 7.5 High severity
- 9.1 Critical severity
Recent XML Injection vulnerabilities
- 7.8 High severity
- 8.8 High severity
- 9.8 Critical severity
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