cnvd - cnvd-2019-18857

cnvd-2019-18857

Vulnerability from cnvd

Title: Cisco Email Security Appliance AsyncOS Software远程安全绕过漏洞

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中的AsyncOS Software的GZIP解压引擎存在远程安全绕过漏洞，该漏洞源于程序未能正确地验证GZIP格式的文件。远程攻击者可借助特制的GZIP压缩文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 AsyncOS Software远程安全绕过漏洞的补丁

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中的AsyncOS Software的GZIP解压引擎存在远程安全绕过漏洞，该漏洞源于程序未能正确地验证GZIP格式的文件。远程攻击者可借助特制的GZIP压缩文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:

厂商已发布了漏洞修复程序，请及时关注更新： https://www.cisco.com/

Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190619-esa-bypass

Impacted products

Name
Cisco Email Security Appliance AsyncOS Software

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-1905",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-1905"
    }
  },
  "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\u7684AsyncOS Software\u7684GZIP\u89e3\u538b\u5f15\u64ce\u5b58\u5728\u8fdc\u7a0b\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5730\u9a8c\u8bc1GZIP\u683c\u5f0f\u7684\u6587\u4ef6\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684GZIP\u538b\u7f29\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u6240\u914d\u7f6e\u7684\u5185\u5bb9\u8fc7\u6ee4\u5668\u3002",
  "discovererName": "Cisco",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.cisco.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-18857",
  "openTime": "2019-06-19",
  "patchDescription": "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\r\n\r\nCisco ESA\u4e2d\u7684AsyncOS Software\u7684GZIP\u89e3\u538b\u5f15\u64ce\u5b58\u5728\u8fdc\u7a0b\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5730\u9a8c\u8bc1GZIP\u683c\u5f0f\u7684\u6587\u4ef6\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684GZIP\u538b\u7f29\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u6240\u914d\u7f6e\u7684\u5185\u5bb9\u8fc7\u6ee4\u5668\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 AsyncOS Software\u8fdc\u7a0b\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Email Security Appliance AsyncOS Software"
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190619-esa-bypass",
  "serverity": "\u4e2d",
  "submitTime": "2019-06-21",
  "title": "Cisco Email Security Appliance AsyncOS Software\u8fdc\u7a0b\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2019-1905 (GCVE-0-2019-1905)

Vulnerability from cvelistv5

Published

2019-06-20 03:10

Modified

2024-11-19 19:05

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 GZIP decompression engine 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 validation of GZIP-formatted files. An attacker could exploit this vulnerability by sending a malicious file inside a crafted GZIP-compressed file. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190619-esa-bypass	vendor-advisory, x_refsource_CISCO
	http://www.securityfocus.com/bid/108856	vdb-entry, x_refsource_BID

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Email Security Appliance (ESA)	Version: 12.0

Show details on NVD website

JSON

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      "exploits": [
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      "metrics": [
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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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