cnvd - cnvd-2017-04808

CNVD-2017-04808

Vulnerability from cnvd - Published: 2017-04-20

Title

Squirrelmail远程代码执行漏洞

Description

SquirrelMail是一款基于PHP的WEB邮件服务程序。 Squirrelmail的initStream函数的Deliver_SendMail.class.php中存在远程代码执行漏洞，由于escapeshellcmd()并未对空格字符进行转义。攻击者可利用漏洞在远程服务器上越权执行任意代码。

Severity

高

Patch Name

Squirrelmail远程代码执行漏洞的补丁

Patch Description

SquirrelMail是一款基于PHP的WEB邮件服务程序。 Squirrelmail的initStream函数的Deliver_SendMail.class.php中存在远程代码执行漏洞，由于escapeshellcmd()并未对空格字符进行转义。攻击者可利用漏洞在远程服务器上越权执行任意代码。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Squirrelmail官方还没有发布相关修复补丁，但第三方提供了修复代码： https://www.wearesegment.com/research/Squirrelmail-Remote-Code-Execution.html

Reference

http://seclists.org/bugtraq/2017/Apr/60

Impacted products

Name
SquirrelMail SquirrelMail <=1.4.22

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-7692"
    }
  },
  "description": "SquirrelMail\u662f\u4e00\u6b3e\u57fa\u4e8ePHP\u7684WEB\u90ae\u4ef6\u670d\u52a1\u7a0b\u5e8f\u3002\r\n\r\nSquirrelmail\u7684initStream\u51fd\u6570\u7684Deliver_SendMail.class.php\u4e2d\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff0c\u7531\u4e8eescapeshellcmd()\u5e76\u672a\u5bf9\u7a7a\u683c\u5b57\u7b26\u8fdb\u884c\u8f6c\u4e49\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5728\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a\u8d8a\u6743\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "discovererName": "filippo.cavallarin@wearesegment.com",
  "formalWay": "\u76ee\u524dSquirrelmail\u5b98\u65b9\u8fd8\u6ca1\u6709\u53d1\u5e03\u76f8\u5173\u4fee\u590d\u8865\u4e01\uff0c\u4f46\u7b2c\u4e09\u65b9\u63d0\u4f9b\u4e86\u4fee\u590d\u4ee3\u7801\uff1a\r\nhttps://www.wearesegment.com/research/Squirrelmail-Remote-Code-Execution.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-04808",
  "openTime": "2017-04-20",
  "patchDescription": "SquirrelMail\u662f\u4e00\u6b3e\u57fa\u4e8ePHP\u7684WEB\u90ae\u4ef6\u670d\u52a1\u7a0b\u5e8f\u3002\r\n\r\nSquirrelmail\u7684initStream\u51fd\u6570\u7684Deliver_SendMail.class.php\u4e2d\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff0c\u7531\u4e8eescapeshellcmd()\u5e76\u672a\u5bf9\u7a7a\u683c\u5b57\u7b26\u8fdb\u884c\u8f6c\u4e49\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5728\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a\u8d8a\u6743\u6267\u884c\u4efb\u610f\u4ee3\u7801\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": "Squirrelmail\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "SquirrelMail SquirrelMail \u003c=1.4.22"
  },
  "referenceLink": "http://seclists.org/bugtraq/2017/Apr/60",
  "serverity": "\u9ad8",
  "submitTime": "2017-04-20",
  "title": "Squirrelmail\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e"
}

CVE-2017-7692 (GCVE-0-2017-7692)

Vulnerability from cvelistv5 – Published: 2017-04-20 14:00 – Updated: 2024-08-05 16:12

Summary

SquirrelMail 1.4.22 (and other versions before 20170427_0200-SVN) allows post-authentication remote code execution via a sendmail.cf file that is mishandled in a popen call. It's possible to exploit this vulnerability to execute arbitrary shell commands on the remote server. The problem is in the Deliver_SendMail.class.php with the initStream function that uses escapeshellcmd() to sanitize the sendmail command before executing it. The use of escapeshellcmd() is not correct in this case since it doesn't escape whitespaces, allowing the injection of arbitrary command parameters. The problem is in -f$envelopefrom within the sendmail command line. Hence, if the target server uses sendmail and SquirrelMail is configured to use it as a command-line program, it's possible to trick sendmail into using an attacker-provided configuration file that triggers the execution of an arbitrary command. For exploitation, the attacker must upload a sendmail.cf file as an email attachment, and inject the sendmail.cf filename with the -C option within the "Options > Personal Informations > Email Address" setting.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://legalhackers.com/advisories/SquirrelMail-…	x_refsource_MISC
	http://www.securityfocus.com/bid/98067	vdb-entryx_refsource_BID
	http://openwall.com/lists/oss-security/2017/04/19/6	x_refsource_MISC
	https://www.exploit-db.com/exploits/41910/	exploitx_refsource_EXPLOIT-DB
	https://security.gentoo.org/glsa/201709-13	vendor-advisoryx_refsource_GENTOO
	http://www.debian.org/security/2017/dsa-3852	vendor-advisoryx_refsource_DEBIAN
	http://www.securitytracker.com/id/1038312	vdb-entryx_refsource_SECTRACK
	http://openwall.com/lists/oss-security/2017/04/27/1	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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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

CNVD-2017-04808

CVE-2017-7692 (GCVE-0-2017-7692)

Tags

Sightings

Nomenclature