certfr_avis - certfr-2019-avi-012

CERTFR-2019-AVI-012

Vulnerability from certfr_avis - Published: - Updated:

De multiples vulnérabilités ont été découvertes dans Cisco Email Security Appliance (ESA). Elles permettent à un attaquant de provoquer un déni de service à distance.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None

Impacted products

	Vendor	Product	Description
	Cisco	N/A	Logiciel Cisco AsyncOS pour Cisco ESA sans le dernier correctif de sécurité

References

Title

Publication Time

Tags

Bulletin de sécurité Cisco cisco-sa-20190109-esa-dos du 9 janvier 2019	None	vendor-advisory
Bulletin de sécurité Cisco cisco-sa-20190109-esa-url-dos du 9 janvier 2019	None	vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Logiciel Cisco AsyncOS pour Cisco ESA sans le dernier correctif de s\u00e9curit\u00e9",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2018-15453",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-15453"
    },
    {
      "name": "CVE-2018-15460",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-15460"
    }
  ],
  "links": [],
  "reference": "CERTFR-2019-AVI-012",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2019-01-10T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Cisco Email\nSecurity Appliance (ESA). Elles permettent \u00e0 un attaquant de provoquer\nun d\u00e9ni de service \u00e0 distance.\n",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Cisco Email Security Appliance (ESA)",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Cisco cisco-sa-20190109-esa-dos du 9 janvier 2019",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-esa-dos"
    },
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Cisco cisco-sa-20190109-esa-url-dos du 9 janvier 2019",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-esa-url-dos"
    }
  ]
}

CVE-2018-15453 (GCVE-0-2018-15453)

Vulnerability from cvelistv5 – Published: 2019-01-10 18:00 – Updated: 2024-11-19 19:18

Summary

A vulnerability in the Secure/Multipurpose Internet Mail Extensions (S/MIME) Decryption and Verification or S/MIME Public Key Harvesting features of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause an affected device to corrupt system memory. A successful exploit could cause the filtering process to unexpectedly reload, resulting in a denial of service (DoS) condition on the device. The vulnerability is due to improper input validation of S/MIME-signed emails. An attacker could exploit this vulnerability by sending a malicious S/MIME-signed email through a targeted device. If Decryption and Verification or Public Key Harvesting is configured, the filtering process could crash due to memory corruption and restart, resulting in a DoS condition. The software could then resume processing the same S/MIME-signed email, causing the filtering process to crash and restart again. A successful exploit could allow the attacker to cause a permanent DoS condition. This vulnerability may require manual intervention to recover the ESA.

Severity ?

8.6 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-20

Assigner

cisco

References

URL

Tags

	https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO
	http://www.securityfocus.com/bid/106511	vdb-entryx_refsource_BID

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Email Security Appliance (ESA)	Affected: n/a

Show details on NVD website

JSON

To clipboard

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  "containers": {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
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        },
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        }
      ],
      "source": {
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        "discovery": "INTERNAL"
      },
      "title": "Cisco Email Security Appliance Memory Corruption Denial of Service Vulnerability",
      "x_legacyV4Record": {
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                    {
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2018-15460 (GCVE-0-2018-15460)

Vulnerability from cvelistv5 – Published: 2019-01-10 22:00 – Updated: 2024-11-19 19:18

Summary

A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) could allow an unauthenticated, remote attacker to cause the CPU utilization to increase to 100 percent, causing a denial of service (DoS) condition on an affected device. The vulnerability is due to improper filtering of email messages that contain references to whitelisted URLs. An attacker could exploit this vulnerability by sending a malicious email message that contains a large number of whitelisted URLs. A successful exploit could allow the attacker to cause a sustained DoS condition that could force the affected device to stop scanning and forwarding email messages.

Severity ?

8.6 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-20

Assigner

cisco

References

URL

Tags

	http://www.securityfocus.com/bid/106507	vdb-entryx_refsource_BID
	https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Email Security Appliance (ESA)	Affected: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T09:54:03.555Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
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              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/106507"
          },
          {
            "name": "20190109 Cisco Email Security Appliance URL Filtering Denial of Service Vulnerability",
            "tags": [
              "vendor-advisory",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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        {
          "product": "Cisco Email Security Appliance (ESA)",
          "vendor": "Cisco",
          "versions": [
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              "version": "n/a"
            }
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
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            "scope": "CHANGED",
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  },
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}

Tags

Taxonomy of the tags.

All sightings related to this event Export sightings related to this event

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CERTFR-2019-AVI-012

Solution

CVE-2018-15453 (GCVE-0-2018-15453)

CVE-2018-15460 (GCVE-0-2018-15460)

Tags

Sightings

Nomenclature