Cisco Email Security Appliance Denial of Service Vulnerability

A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliance (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 handling of email messages that contain large attachments. An attacker could exploit this vulnerability by sending a malicious email message through the targeted device. A successful exploit could allow the attacker to cause a permanent DoS condition due to high CPU utilization. This vulnerability may require manual intervention to recover the ESA.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-esa-dos

Security Impact Rating: High

CVE: CVE-2019-1947

Related:

  • No Related Posts

Cisco Email Security Appliance and Cisco Content Security Management Appliance Denial of Service Vulnerability

A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) and Cisco Content Security Management Appliance (SMA) could allow an unauthenticated, remote attacker to cause repeated crashes in some internal processes that are running on the affected devices, resulting in a denial of service (DoS) condition.

The vulnerability is due to insufficient input validation of email attachments. An attacker could exploit this vulnerability by sending an email message with a crafted attachment through an affected device. A successful exploit could allow the attacker to cause specific processes to crash repeatedly, resulting in the complete unavailability of both the Cisco Advanced Malware Protection (AMP) and message tracking features and in severe performance degradation while processing email.

After the affected processes restart, the software resumes filtering for the same attachment, causing the affected processes to crash and restart again. A successful exploit could also allow the attacker to cause a repeated DoS condition. Manual intervention may be required to recover from this situation.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-esa-sma-dos

Security Impact Rating: High

CVE: CVE-2019-1983

Related:

  • No Related Posts

Israeli Exchange, BTP Team up on Blockchain Securities Platform

Email was send successfully!

Please check your inbox for

our authentication email.

Sign up to Finance Magnates
I already have an account

*required fields

Sign me up for Finance Magnates’ News Updates
I want to know about Finance Magnates’ Events
By signing up I agree to Finance Magnates’ Terms, Cookies and Privacy Notice

Thank you for registering

to Finance Magnates.

Please open the email we

sent you and click on the

link to verify your account.

English

Русский

News
All NewsRetail FX
AnalysisBrokersProductsRegulationTechnologyBloggersInstitutional FX
ExchangesExecutionPrime BrokerageRegulationTechnologyBloggersExecutives
Expert InsightsExecutive MovesInterviewsExpert ListCryptoCurrency
NewsExchangesCoinsICOsRegulationEducation CenterFinTech
NewsData

Related:

  • No Related Posts

Remote Server returned/ Client was not authenticated to send anonymous mail during MAIL FROM [BN6PR12CA0048.namprd12.prod.outlook.com]>

I need a solution

Hello,

We cancled our Symantec account a couple of years ago and sicne then quite a few institutuions/business have been unable to email us as emails addressed to our domain are retunred undeliverable.  Recently we were advised that the issues appears to be that as a former Symantec customer that we did not terminate the service properly after we moved to Office 365. We were advised to contact Symantec to have the service compeletly terminated.  Below is a sample of the error message inclusive of the Diagnostic Info,  recieved by someone attemntting to email us.  A Symantec message does appear in the diagnotic in the diagnostic information: 

(using TLS with cipher AES128-SHA (128/128 bits))

        (Client did not present a certificate)

        by znpcpapbrg01i.bnymellon.com (Symantec Messaging Gateway) with SMTP id 18.7C.04270.F113C6C5; 

Below is the full error message.  Please advise if this can be reolved.  Many many thanks. 

Delivery has failed to these recipients or groups:

erogers@bradmer.com
Your message wasn’t delivered because the recipient’s email provider rejected it.

Diagnostic information for administrators:

Generating server: server-2.bemta.az-d.us-east-1.aws.symcld.net

erogers@bradmer.com
Remote Server returned ‘554 5.7.0 < #5.7.57 smtp; 530 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [BN6PR12CA0048.namprd12.prod.outlook.com]>’

Original message headers:

Return-Path: <george.gasson@bnymellon.com>

DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bnymellon.com;

        s=BNY071018; t=1550594340; i=@bnymellon.com;

        bh=6CKn9+xMacgVsGmREMvRZd4vqsvhSI3dyrd8owANg1Y=;

        h=From:Subject:Date:Message-ID:Content-Type:MIME-Version:To;

        b=hDVm3hyZkP8nMSAIMHRKbKCHkfVy5CuolxDZMQgfL5c0ZG/8kPeRB5s6iGJy17ny0

        rSvDe2KQlABFBoFpw5do1kJCAOY2zSl7T6CL8bme4Z1HPDQwc1jyGojWI7R+8JO839

        lv8ZXnqSoW4gSfDH+WbyI6Jn1mX7Pq/LGTtJHXXn+Y0VcsI2e3WUUv9P7YcSCwWH53

        l1c87rxg1ZdCbNlL8DYi8j3IsU0jsrJNinG3z6NcF3jklLox0ngbGQtMjXY9TrVBjG

        sm5etZNEnqxZQeR380yZJWKQqc0/WvjttDEZsYB7rjr7cqwBv7wLiRyUvqSXKR1c4E

        ROsTtP5On/0Vw==

Received: from [67.219.247.54] (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256 bits))

        by server-2.bemta.az-d.us-east-1.aws.symcld.net id 4B/16-27512-4213C6C5; Tue, 19 Feb 2019 16:39:00 +0000

Authentication-Results: mx.messagelabs.com; spf=pass

  (server-29.tower-426.messagelabs.com: domain of bnymellon.com designates

  67.219.247.54 as permitted sender) smtp.mailfrom=bnymellon.com;

  dkim=none (message not signed); dmarc=none header.from=bnymellon.com

X-Brightmail-Tracker: H4sIAAAAAAAAA2VUe0xTdxT2d1+9IMXy0h+ELbPE7GU7cC47y8b

  ijHE3kC0LZiQ6oxZbabNSSFsmbMmCk7HBeIgQgQKF8X5GkOIEBIoPnmMghsFU3gWCCE7jY06B

  3XLBueyfk++c7zvfOecmv8uSrrUOXqwqyqjS6xRaKeNIVfhXn5D5+GkP+l4/7QCmxgEE46MXK

  VhOfUDCaE09Be02CwnTKfk0xD48Q8CfkxYG+lqsNKwMt9KQUmSjIXXwKg3t8cUkXH4wKII/ho

  Pgae9dBIkX8yiIyXwFruR5QsvVDhoqG7IRTJzspCF7cYyB/sk+CmYzx0hYav2OhNrZERLi0vx

  hfqaFghpLLQ0J/c8ouJdoFcGVLBMN15uLKWg+X4JguqMaQX9+G4LR8WYR9NSdoWDwUR4DdS0m

  ChbKlkQwP15FwoW/ykXw26W/CRjJshBwcrGQgIfTJgbi41cQzFTEELCUdwxKZ54gsHYskfDwa

  rUIOptvMDBcZmWge+FHAgZLivgri8YJSK1JJeBmRxfBf6YC/p65eBIscYnMLiWXXmAjuZqnY4

  gbayoXce0lrSTXOeTCdY7EkFzS3DLBxa40iriaqbM0l/WDmeTSpnIQZy18SnIZyc00d/1+C8U

  lxjfS3EzsPPHZtgO0RhcSHnWEVncV6yLMxSgqp6mejEF9GSgBObBYshM3Fw5TCciRdZW0Efhu

  kpkRkssI9zZlEELyDOEnifMiITnHMyeshL2f4ftrkstWvdwkcjz+u13kwLpL3sbnJ6sJAcvxY

  Osdvs6ylGQbHur/2F4WSz7Ad2qnSTtGks34cXfVqpyUbME3bHmEsJ47nrjWwwjYA89NLdMC9s

  EdxWWUoP8W19fdIwVPF9yVZaOEsd4481Teaq+r5DWcZR5a83kZV5+9R9tvwZLTG7HtRAF9Cm0

  2vTDb9IKv6QVfoX4U30oaYwS8Hec33V/Db+KSn+fJdfyrdYr4f307rhtoWPPZiuPis3mNI48L

  EW6qSiHWRXMLi/S6KP2nCVE+ElegnSF6TajaGKbQaGV+vr4yP78dsvdkfnLF1zKlPNIgUykMR

  nt63CA3RIcd1SrlOpXxHOIfqDLCAV1AltLQS8iTJaQe4szXtQddnUPCldFqhUF9WB+pVRkuIW

  +WlWLxbl+ec9GrQlVRxzRa/pWv05h1krqLx+202BChCDNoQgWqGwWyDY8nckm2azUm187w0TJ

  mj42rcbRtNpd0pXThOpXXFvFHdguJ3UIdqXs+YP1PMoBe8nITow0bNrg6Raj0YRrjf/nbaAuL

  pG7Cnk4anfH5Hrf5FQl+RdPKl/YVjYp/Ka8YlNx7oPf9gMGQPTnKkMmSQJ+iykMb31pxf8f8f

  blNseMrj0/V3p8776UOffLL8eTgrVB+q+dm+iNiVLn/m1mb/yZ9256gRbiWG8080zq+OyIrjS

  rb3V8bLJIu9Kk/rMoMIKdUQQEe+5zLX927b1e/T4X8sH9gZ3Bw36aiI5VfeJrTdu2XUga1wu8

  NUm9Q/ANRxQlcRAUAAA==

X-Env-Sender: george.gasson@bnymellon.com

X-Msg-Ref: server-29.tower-426.messagelabs.com!1550594311!2056042!25

X-Originating-IP: [170.61.173.129]

X-SYMC-ESS-Client-Auth: outbound-route-from=pass

X-StarScan-Received:

X-StarScan-Version: 9.31.5; banners=bnymellon.com,-,bradmer.com

Received: (qmail 8740 invoked from network); 19 Feb 2019 16:38:59 -0000

Received: from znpcpapbrg01o.bnymellon.com (HELO znpcpapbrg01i.bnymellon.com) (170.61.173.129)

  by server-29.tower-426.messagelabs.com with DHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 19 Feb 2019 16:38:59 -0000

X-AuditID: 0aa06eb7-ff3ff700000010ae-64-5c6c311ff12f

Received: from WTPCPHTMEM02.ams.bnymellon.net (wtpcphtmem02.ams.bnymellon.net [160.254.249.175])

        (using TLS with cipher AES128-SHA (128/128 bits))

        (Client did not present a certificate)

        by znpcpapbrg01i.bnymellon.com (Symantec Messaging Gateway) with SMTP id 18.7C.04270.F113C6C5; Tue, 19 Feb 2019 11:38:55 -0500 (EST)

Received: from WTPCPEXMEM50.ams.bnymellon.net (10.88.250.171) by

WTPCPHTMEM02.ams.bnymellon.net (160.254.249.175) with Microsoft SMTP Server

(TLS) id 14.3.408.0; Tue, 19 Feb 2019 11:38:55 -0500

Received: from WTPCPEXMEM47.ams.bnymellon.net (10.88.250.168) by

WTPCPEXMEM50.ams.bnymellon.net (10.88.250.171) with Microsoft SMTP Server

(version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id

15.1.1531.3; Tue, 19 Feb 2019 11:38:54 -0500

Received: from WTPCPEXMEM47.ams.bnymellon.net ([10.88.250.168]) by

WTPCPEXMEM47.ams.bnymellon.net ([10.88.250.168]) with mapi id 15.01.1531.003;

Tue, 19 Feb 2019 11:38:54 -0500

From: “Gasson, George” <george.gasson@bnymellon.com>

Subject: Markets in review week ending 2/15/19

Thread-Topic: Markets in review week ending 2/15/19

Thread-Index: AdTIcZkQ+XuS/IPwQHKb7fmVvhjN7A==

Date: Tue, 19 Feb 2019 16:38:54 +0000

Message-ID: <ee9356a4afd54921b7587364d60ee53b@bnymellon.com>

Accept-Language: en-US

Content-Language: en-US

X-MS-Has-Attach: yes

X-MS-TNEF-Correlator:

x-originating-ip: [167.222.211.240]

Content-Type: text/plain

MIME-Version: 1.0

To: Undisclosed recipients:;

X-CFilter-Loop: Reflected NPC6

X-Brightmail-Tracker: H4sIAAAAAAAAA2WTa0ybZRTHfd5radb5DmF7xGVBdIm6UYduyUncjPGDe78YxUSNCwnr4N0l

        K6UpEwdG0wki7dgY2QK0ENpxE9iQIoVtsJYOgRaQAcOOOsO9BUkHygQncrPwQkLit98553/+

        55wneSRk8DwbJjmjOidoVAplBCOlpGZVXWR4lDLmQLr+WTA2PkAwMnSXgpWcORKGLPUUtHut

        JPiyzTSkz+cS8OeYlYEeu4OGVU8zDdmlXhpy3G00tOvKSPhpzs3Cr56PYLH7DwRZd00UaPPD

        odX0PNjbnDTcuFOAYDTNRUPBzDADvWM9FEzmD5Ow3PwNCbWTgyRkXD0C/gk7BRZrLQ363iUK

        ZrMcLLQajDT028oosDWUI/A5qxH0mu8hGBqxsdBVl0uB+28TA3V2IwXTFcss+EduknD7n0oW

        7rf8S8CgwUpA2kwJAfM+IwM63SqCiSotAcumk/D9xAICh3OZhPm2ahZctkcMeCocDHROZxLg

        Li8NXFk6QkCOJYeA35wdROCZigP3TOlIsGZkMe/E89eKvSRvWRxG/HBTJcu3lzeTvGtgB+8a

        1JL8pakVgk9fbWR5y3gNzRu+KyL5q+OFiHeULJJ83mUbzfc/sVN8lq6R5ifS/cSHe49JD8cL

        yjPJgub1t49LT7d39iO1qQKdL2yqJ7WoJw/pUZAEcwexrcRD6ZFUEsy1ErjeYybFoA3hbwvm

        kBisIlzz1y/sWkswZ0X4ln3PGjOBdsvlinWr5zg5HnnoX9eEcG/ihrFqQmQ5djc/DuQlEorb

        iwd6j66lZdxh/LjWR64x4nbip5031+Uktws/8poIcbsQPNrXxYgciqfGV2iRX8LOsor1rUlO

        i3C39iItmu7AHQYvJc7djfOvmBhx51ewoWhgw2gPrq6Zpa+gUOOWecatXsYtXqIoHnf5pwiR

        92Nz0xNG5H24/Lqf3OSfHePE//P7cd2DOxs+L+IMXcHGsDKEO39vR5uiqekZelN07eIoa0ay

        KhSWqlLHqRXqE5pTB6LkJ1QpCYJSmaiSxyUm/IjED3jrNhrNe7cFcRIUsU3moZQxwbQiOSkl

        oQW9HDAbs9zoRWGUKlElRITIoqSBsixekZIqaBJjNZ8rhaQW9IKEitglu278LCaYO6U4J5wV

        BLWg2awSkqAwLdJ1h+kbihZii79wGXuOedXPhA/fazv/1cclH3D1Lu7T+KfJZ/HS/diDDbPj

        ubYg+depF97q2x5tlO88Hlp56NK+aMOS+Yejvo6+hcaknpPbIj/pr+HeM+vnH7pS2PfjstyF

            8t2HYrZXDUyGgynywpeZr2a/saQ5MpdW5Bvodnozo2MiqKTTiqjXSE2S4j+oY7LtiA

0

Related:

  • No Related Posts

Encrypted mails by PGP server doesn’t go out via symantec messaging gateway.

I need a solution

Hi All,

We have a setup like below;

Client –> Exchange Server –> Symantec Encryption Management Server (aka PGP server) –> Symantec Messaging Gateway –> Internet.

The unencrypted emails are processed and going through as expected. No issues.

When I excrypt that message and send, It doesn’t go through. 

Is there something I need to do in my Messaging Gateway or PGP server? 

Please advise. 

Thanks

0

Related:

  • No Related Posts