Manageengine Ad360: Improper Authentication
CVE-2023-35785 is a high-severity improper authentication vulnerability in Manageengine Ad360 from Zoho, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 4.3 as the first without the flaw, so updating Manageengine Ad360 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 2.43% chance of exploitation within 30 days, higher than 85% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Manageengine Ad360 to 4.3 or a later version.
- Update Manageengine Adaudit Plus to 7.2 or a later version.
- Update Manageengine Admanager Plus to 7.2 or a later version.
- Read the advisory on manageengine.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Zoho | Manageengine Ad360 | before 4.3; 4.3 | 4.3 |
| Zoho | Manageengine Adaudit Plus | before 7.2; 7.2 | 7.2 |
| Zoho | Manageengine Admanager Plus | before 7.2; 7.2 | 7.2 |
| Zoho | Manageengine Assetexplorer | before 6.9; 6.9; 7.0 | 6.9 |
| Zoho | Manageengine Cloud Security Plus | before 4.1; 4.1 | 4.1 |
| Zoho | Manageengine Datasecurity Plus | before 6.1; 6.1 | 6.1 |
| Zoho | Manageengine Eventlog Analyzer | before 12.3.0; 12.3.0 | 12.3.0 |
| Zoho | Manageengine Exchange Reporter Plus | before 5.7; 5.7 | 5.7 |
| Zoho | Manageengine Log360 | before 5.3; 5.3 | 5.3 |
| Zoho | Manageengine Log360 Ueba | 4.0 | Not stated |
| Zoho | Manageengine M365 Manager Plus | before 4.5; 4.5 | 4.5 |
| Zoho | Manageengine M365 Security Plus | before 4.5; 4.5 | 4.5 |
| Zoho | Manageengine Recoverymanager Plus | before 6.0; 6.0 | 6.0 |
| Zoho | Manageengine Servicedesk Plus | before 14.2; 14.2; 14.3 | 14.2 |
| Zoho | Manageengine Servicedesk Plus Msp | before 14.3; 14.3 | 14.3 |
| Zoho | Manageengine Sharepoint Manager Plus | before 4.4; 4.4 | 4.4 |
| Zoho | Manageengine Supportcenter Plus | before 14.3; 14.3 | 14.3 |
Version data comes from NVD's product matching. 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
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- NoneNo account or login is needed.
- 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
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
Official description
Zoho ManageEngine Active Directory 360 versions 4315 and below, ADAudit Plus 7202 and below, ADManager Plus 7200 and below, Asset Explorer 6993 and below and 7xxx 7002 and below, Cloud Security Plus 4161 and below, Data Security Plus 6110 and below, Eventlog Analyzer 12301 and below, Exchange Reporter Plus 5709 and below, Log360 5315 and below, Log360 UEBA 4045 and below, M365 Manager Plus 4529 and below, M365 Security Plus 4529 and below, Recovery Manager Plus 6061 and below, ServiceDesk Plus 14204 and below and 143xx 14302 and below, ServiceDesk Plus MSP 14300 and below, SharePoint Manager Plus 4402 and below, and Support Center Plus 14300 and below are vulnerable to 2FA bypass via a few TOTP authenticators. Note: A valid pair of username and password is required to leverage this vulnerability.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How developers prevent this class of flaw
- Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Other references
- manageengine.comProduct
Other vulnerabilities in Manageengine Ad360
- 9.8 Critical severity
Recent Improper Authentication vulnerabilities
- 8.8 High severity
- 8.8 High severity
- 7.5 High severity
- 9.8 Critical severity
- 8.8 High severity
- 7.5 High severity
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