Vulnerability-Lookup

CNVD-2019-01871

Vulnerability from cnvd - Published: 2019-01-17

Title

Cisco Email Security Appliance S/MIME拒绝服务漏洞

Description

Cisco Email Security Appliance(ESA)是美国思科（Cisco）公司的一个电子邮件安全设备。AsyncOS Software是使用在其中的操作系统。 Cisco ESA的AsyncOS Software中的Secure/Multipurpose Internet Mail Extensions (S/MIME) Decryption and Verification或S/MIME Public Key Harvesting功能存在安全漏洞，该漏洞源于程序未能对S/MIME签名的邮件进行正确地输入验证。远程攻击者可通过发送恶意的S/MIME签名的邮件利用该漏洞造成设备拒绝服务（系统内存损坏）。

Severity

高

Patch Name

Cisco Email Security Appliance S/MIME拒绝服务漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接：

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-esa-dos

Reference

https://www.securityfocus.com/bid/106511

Impacted products

Name
Cisco Email Security Appliance 无

Show details on source website

JSON

To clipboard

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  "bids": {
    "bid": {
      "bidNumber": "106511"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-15453"
    }
  },
  "description": "Cisco Email Security Appliance(ESA)\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u7535\u5b50\u90ae\u4ef6\u5b89\u5168\u8bbe\u5907\u3002AsyncOS Software\u662f\u4f7f\u7528\u5728\u5176\u4e2d\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco ESA\u7684AsyncOS Software\u4e2d\u7684Secure/Multipurpose Internet Mail Extensions (S/MIME) Decryption and Verification\u6216S/MIME Public Key Harvesting\u529f\u80fd\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5bf9S/MIME\u7b7e\u540d\u7684\u90ae\u4ef6\u8fdb\u884c\u6b63\u786e\u5730\u8f93\u5165\u9a8c\u8bc1\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u6076\u610f\u7684S/MIME\u7b7e\u540d\u7684\u90ae\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u8bbe\u5907\u62d2\u7edd\u670d\u52a1\uff08\u7cfb\u7edf\u5185\u5b58\u635f\u574f\uff09\u3002",
  "discovererName": "Cisco",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\n\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-esa-dos",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-01871",
  "openTime": "2019-01-17",
  "patchDescription": "Cisco Email Security Appliance(ESA)\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u7535\u5b50\u90ae\u4ef6\u5b89\u5168\u8bbe\u5907\u3002AsyncOS Software\u662f\u4f7f\u7528\u5728\u5176\u4e2d\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco ESA\u7684AsyncOS Software\u4e2d\u7684Secure/Multipurpose Internet Mail Extensions (S/MIME) Decryption and Verification\u6216S/MIME Public Key Harvesting\u529f\u80fd\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5bf9S/MIME\u7b7e\u540d\u7684\u90ae\u4ef6\u8fdb\u884c\u6b63\u786e\u5730\u8f93\u5165\u9a8c\u8bc1\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u6076\u610f\u7684S/MIME\u7b7e\u540d\u7684\u90ae\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u8bbe\u5907\u62d2\u7edd\u670d\u52a1\uff08\u7cfb\u7edf\u5185\u5b58\u635f\u574f\uff09\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Cisco Email Security Appliance S/MIME\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Email Security Appliance \u65e0"
  },
  "referenceLink": "https://www.securityfocus.com/bid/106511",
  "serverity": "\u9ad8",
  "submitTime": "2019-01-14",
  "title": "Cisco Email Security Appliance S/MIME\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

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

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

Title

Cisco Email Security Appliance Memory Corruption Denial of Service Vulnerability

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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-19 17:25 UTC

CWE

CWE-20

Assigner

cisco mitre root Scorecard

References

2 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

1 product

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

Date Public

2019-01-09 00:00

Show details on NVD website

JSON

To clipboard

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            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-esa-dos"
          },
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            "url": "http://www.securityfocus.com/bid/106511"
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      },
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Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CNVD-2019-01871

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

Tags

Sightings

Nomenclature

Related by attack behaviour