8/23/2020 0 Comments Microsoft Ftp Service Exploit
In a security bulletin released today as part of Patch Day, Microsoft describes a serious vulnerability that affects the optional FTP server that comes with the latest versions of IIS.Specifically, the IIS FTP service suffers from a buffer overflow vulnerability involving the way it handles a specially crafted FTP commands (or more specifically, specially encoded characters in an FTP response).By sending such a malformed FTP command, an attacker could exploit this vulnerability to either put your FTP server into a Denial of Service (DoS) state, or to gain complete control of it.
An attacker does not have to authenticate to your FTP server to launch this attack. Microsoft Ftp Service Exploit Install Or StartHowever, IIS does not install or start the IIS FTP service by default. You are only vulnerable to this attack if you have specifically installed and started this service. That said, many administrators do enable IISs FTP service in order to give web administrators an easy way to update their web sites. If you are one of those administrators, you should consider this flaw a serious risk. ![]() Whether or not you are using the IIS FTP service, we still recommend you download, test and install this update as soon as you can. Being a critical server update, we highly recommend you test it on non-production servers before pushing it to your real web site. Solution Path: Download, test, and deploy the appropriate IIS patches immediately, or let Windows Automatic Update do it for you. Status: Microsoft has released patches to fix this vulnerability References: MS Security Bulletin MS11-004 ISS X-Force Advisory on IIS FTP Vulnerability This alert was researched and written by Corey Nachreiner, CISSP. What did you think of this alert Let us know at email protected. More alerts and articles: Log into the LiveSecurity Archive. Share This: Related Posts Filed Under: Security Bytes Tagged With: buffer overflow, code execution, DoS, FTP, iis, Updates and patches Leave a Reply Cancel reply Your email address will not be published. Required fields are marked Comment Name Email Website I have read and accept the WatchGuard Privacy Policy The 443 Podcast A weekly podcast featuring the leading white-hat hackers and security researchers. Listen Now Threat Landscape Filter and view Firebox Feed data by type of attack, region, country, and date range. View Now Top Posts RIpple20 Causes Waves in Network Security A New DDoS Record Section 230 US Senators Introduce Bill to Backdoor Encryption Email Newsletter Sign up to get the latest security news and threat analysis delivered straight to your inbox Daily Weekly By signing up you agree to our Privacy Policy. ![]() Stay in Touch Recent Posts GDPR Complaints Used as an Extortion Tool in 23,000 Databases New Research Reveals Sexist Tendencies in Facial Recognition Tech Dont Trust the App Q1 2020 Internet Security Report ClearSkys 200 Million Lesson on Security for High Value Targets View All Search Archives Archives Select Month July 2020 (3) June 2020 (13) May 2020 (15) April 2020 (19) March 2020 (14) February 2020 (30) January 2020 (13) December 2019 (14) November 2019 (27) October 2019 (20) September 2019 (20) August 2019 (21) July 2019 (25) June 2019 (17) May 2019 (13) April 2019 (23) March 2019 (26) February 2019 (27) January 2019 (20) December 2018 (9) November 2018 (23) October 2018 (38) September 2018 (14) August 2018 (31) July 2018 (26) June 2018 (22) May 2018 (15) April 2018 (27) March 2018 (30) February 2018 (24) January 2018 (12) December 2017 (18) November 2017 (16) October 2017 (21) September 2017 (28) August 2017 (25) July 2017 (20) June 2017 (29) May 2017 (27) April 2017 (31) March 2017 (30) February 2017 (26) January 2017 (30) December 2016 (22) November 2016 (33) October 2016 (23) September 2016 (26) August 2016 (26) July 2016 (30) June 2016 (23) May 2016 (15) April 2016 (17) March 2016 (21) February 2016 (20) January 2016 (15) December 2015 (23) November 2015 (17) October 2015 (19) September 2015 (21) August 2015 (16) July 2015 (16) June 2015 (22) May 2015 (25) April 2015 (25) March 2015 (31) February 2015 (32) December 2014 (9) November 2014 (11) October 2014 (10) September 2014 (10) August 2014 (14) July 2014 (8) June 2014 (8) May 2014 (14) April 2014 (16) March 2014 (14) February 2014 (13) January 2014 (12) December 2013 (10) November 2013 (13) October 2013 (17) September 2013 (14) August 2013 (11) July 2013 (10) June 2013 (15) May 2013 (13) April 2013 (19) March 2013 (20) February 2013 (21) January 2013 (18) December 2012 (12) November 2012 (14) October 2012 (12) September 2012 (13) August 2012 (19) July 2012 (10) June 2012 (14) May 2012 (14) April 2012 (14) March 2012 (17) February 2012 (15) January 2012 (13) December 2011 (8) November 2011 (6) October 2011 (7) September 2011 (6) August 2011 (8) July 2011 (5) June 2011 (6) May 2011 (7) April 2011 (15) March 2011 (17) February 2011 (11) January 2011 (6) December 2010 (5) November 2010 (2) October 2010 (9) September 2010 (7) August 2010 (6) July 2010 (3) June 2010 (7) May 2010 (5) April 2010 (6) March 2010 (8) Copyright 2020 WatchGuard Technologies Privacy Policy Terms of Use.
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