CVE-2024-20526 (GCVE-0-2024-20526)
Vulnerability from cvelistv5
Published
2024-10-23 17:53
Modified
2024-10-23 18:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
A vulnerability in the SSH server of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition for the SSH server of an affected device.
This vulnerability is due to a logic error when an SSH session is established. An attacker could exploit this vulnerability by sending crafted SSH messages to an affected device. A successful exploit could allow the attacker to exhaust available SSH resources on the affected device so that new SSH connections to the device are denied, resulting in a DoS condition. Existing SSH connections to the device would continue to function normally. The device must be rebooted manually to recover. However, user traffic would not be impacted and could be managed using a remote application such as Cisco Adaptive Security Device Manager (ASDM).
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software |
Version: 9.16.4.67 Version: 9.16.4.70 Version: 9.18.4.40 Version: 9.20.3 |
{
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"cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*"
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"version": "9.16.4.70"
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"version": "9.18.4.40"
},
{
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}
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}
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"timestamp": "2024-10-23T18:36:06.989800Z",
"version": "2.0.3"
},
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"title": "CISA ADP Vulnrichment"
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"cna": {
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}
],
"exploits": [
{
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"value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
}
],
"metrics": [
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
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"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
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"references": [
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"name": "cisco-sa-asa-ssh-dos-eEDWu5RM",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM"
}
],
"source": {
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"defects": [
"CSCwm49153"
],
"discovery": "EXTERNAL"
}
}
},
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"dateReserved": "2023-11-08T15:08:07.691Z",
"dateUpdated": "2024-10-23T18:41:16.962Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"vulnrichment": {
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"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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