cnvd - cnvd-2019-21304

cnvd-2019-21304

Vulnerability from cnvd

Title: Cisco Email Security Appliance输入验证错误漏洞

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是运行在其中的一套操作系统。

Cisco ESA中附件的扫描存在输入验证错误漏洞，该漏洞源于程序未能对邮件正文执行正确的输入验证。远程攻击者可通过使用特殊的格式命名恶意的附件利用该漏洞绕过所配置的内容过滤器。

Severity: 中

Patch Name: Cisco Email Security Appliance输入验证错误漏洞的补丁

Patch 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是运行在其中的一套操作系统。

Cisco ESA中附件的扫描存在输入验证错误漏洞，该漏洞源于程序未能对邮件正文执行正确的输入验证。远程攻击者可通过使用特殊的格式命名恶意的附件利用该漏洞绕过所配置的内容过滤器。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

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://bst.cloudapps.cisco.com/bugsearch/bug/CSCvp88949

Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-esa-bypass

Impacted products

Name
Cisco Email Security Appliance

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-1921"
    }
  },
  "description": "Cisco Email Security Appliance\uff08ESA\uff09\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u7535\u5b50\u90ae\u4ef6\u5b89\u5168\u8bbe\u5907\u3002AsyncOS Software\u662f\u8fd0\u884c\u5728\u5176\u4e2d\u7684\u4e00\u5957\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco ESA\u4e2d\u9644\u4ef6\u7684\u626b\u63cf\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5bf9\u90ae\u4ef6\u6b63\u6587\u6267\u884c\u6b63\u786e\u7684\u8f93\u5165\u9a8c\u8bc1\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4f7f\u7528\u7279\u6b8a\u7684\u683c\u5f0f\u547d\u540d\u6076\u610f\u7684\u9644\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u6240\u914d\u7f6e\u7684\u5185\u5bb9\u8fc7\u6ee4\u5668\u3002",
  "discovererName": "unKnow",
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  "number": "CNVD-2019-21304",
  "openTime": "2019-07-05",
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  "patchName": "Cisco Email Security Appliance\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Email Security Appliance"
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-esa-bypass",
  "serverity": "\u4e2d",
  "submitTime": "2019-07-05",
  "title": "Cisco Email Security Appliance\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2019-1921 (GCVE-0-2019-1921)

Vulnerability from cvelistv5

Published

2019-07-06 01:25

Modified

2024-11-19 19:03

Severity ?

5.8 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

CWE

CWE-20

Summary

A vulnerability in the attachment scanning of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device. The vulnerability is due to improper input validation of the email body. An attacker could exploit this vulnerability by naming a malicious attachment with a specific pattern. A successful exploit could allow the attacker to bypass configured content filters that would normally block the attachment.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-esa-bypass	vendor-advisory, x_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Email Security Appliance (ESA)	Version: 12.0.0-419

Show details on NVD website

JSON

To clipboard

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                "role": "CISA Coordinator",
                "timestamp": "2024-11-19T17:23:42.836975Z",
                "version": "2.0.3"
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      "metrics": [
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
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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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