CyberSecBulletin
CVE-2023-35078Exploited in the wildNVD status: Analyzed

Ivanti Endpoint Manager Mobile Authentication Bypass

Published Updated By the CyberSecBulletin desk

CVE-2023-35078 is a critical-severity improper authentication vulnerability in Endpoint Manager Mobile from Ivanti, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists versions 11.10.0.2, 11.9.1.1, 11.8.1.1 as the first without the flaw, so updating Endpoint Manager Mobile to one of those releases or later removes the exposure. CISA added it to the Known Exploited Vulnerabilities catalogue on July 25, 2023, which means attacks have been observed in the wild, including in ransomware campaigns.

Patch now

Attackers are already exploiting this vulnerability, according to CISA.

What to do

  1. Update Endpoint Manager Mobile to 11.10.0.2 or 11.9.1.1 or 11.8.1.1, whichever matches your release line, or a later version.
  2. CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  3. Read the advisory on forums.ivanti.com for workarounds and exact fixed builds.
  4. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
IvantiEndpoint Manager Mobile11.10.0.1 up to, but not including, 11.10.0.2; 11.9.1.0 up to, but not including, 11.9.1.1; 11.8.1.0 up to, but not including, 11.8.1.1; 11.8.1.0 and earlier11.10.0.2, 11.9.1.1, 11.8.1.1

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
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:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.19.8CriticalNVD
CVSS 3.010.0CriticalCNA (hackerone.com)

Official description

An authentication bypass vulnerability in Ivanti EPMM allows unauthorized users to access restricted functionality or resources of the application without proper authentication.

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.

More Improper Authentication vulnerabilities (CWE-287)

Timeline

  1. CVE record published.
  2. Added to CISA's Known Exploited Vulnerabilities catalogue.
  3. CISA published its SSVC assessment (exploitation: active, automatable: yes, technical impact: total).
  4. Deadline for US federal agencies to remediate, set by CISA.
  5. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Endpoint Manager Mobile

All Endpoint Manager Mobile vulnerabilities

Recent Improper Authentication vulnerabilities

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