Cisco Secure Endpoint: Out-of-bounds Read
CVE-2024-20290 is a high-severity out-of-bounds read vulnerability in Cisco Secure Endpoint from Cisco, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Cisco Secure Endpoint versions: 6.0.9; 6.0.7; 6.1.5, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 33.3% chance of exploitation within 30 days, which is in the top 1.6% of all scored CVEs.
EPSS places it among the vulnerabilities most likely to be exploited soon.
What to do
- Update Secure Endpoint to 7.5.17 or 8.2.3.30119, whichever matches your release line, or a later version.
- Update Secure Endpoint Private Cloud to 3.8.0 or a later version.
- Read the advisory on sec.cloudapps.cisco.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 |
|---|---|---|---|
| Cisco | Cisco Secure Endpoint | 6.0.9; 6.0.7; 6.1.5; 6.1.7; 6.1.9; 6.2.1; 6.2.5; 6.2.19; and 25 more ranges | Not stated |
| Cisco | Cisco Secure Endpoint Private Cloud Administration Portal | Not specified in the record | Not stated |
| Cisco | Cisco Secure Endpoint Private Cloud Console | Not specified in the record | Not stated |
| Cisco | Secure Endpoint | before 7.5.17; 8.0.1.21160 up to, but not including, 8.2.3.30119 | 7.5.17, 8.2.3.30119 |
| Cisco | Secure Endpoint Private Cloud | before 3.8.0 | 3.8.0 |
| Fedora Project | Fedora | 38; 39 | Not stated |
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
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | CNA (cisco.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
A vulnerability in the OLE2 file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an incorrect check for end-of-string values during scanning, which may result in a heap buffer over-read. An attacker could exploit this vulnerability by submitting a crafted file containing OLE2 content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software and consuming available system resources. For a description of this vulnerability, see the ClamAV blog .
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How developers prevent this class of flaw
- Use a language that provides appropriate memory abstractions.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other references
Other vulnerabilities in Cisco Secure Endpoint
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
Recent Out-of-bounds Read vulnerabilities
- 7.8 High severity
- 7.8 High severity
- 7.5 High severity
- 9.6 Critical severity
- 9.6 Critical severity
- 7.8 High severity
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