{"id":23046,"date":"2018-07-10T18:34:50","date_gmt":"2018-07-10T18:34:50","guid":{"rendered":"https:\/\/one.sightlinemg.com\/federaltimes\/uncategorized\/2018\/07\/10\/irs-systems-found-vulnerable-to-unauthorized-access\/"},"modified":"2026-08-08T04:47:06","modified_gmt":"2026-08-08T04:47:06","slug":"irs-systems-found-vulnerable-to-unauthorized-access","status":"publish","type":"post","link":"https:\/\/one.sightlinemg.com\/federaltimes\/it-networks\/2018\/07\/10\/irs-systems-found-vulnerable-to-unauthorized-access\/","title":{"rendered":"IRS systems found vulnerable to unauthorized access"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The Internal Revenue Service\u2019s oversight of Active Directory \u2014 the Microsoft service that combines authentication, authorization and directory management \u2014 failed to meet established standards, according to a June 27 Treasury Inspector General for Tax Administration report.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cTIGTA previously recommended that the IRS establish an agencywide Active Directory governing body that finalizes and enforces forest design criteria, develops standards, oversees trusts and ensures that unauthorized forests or domains are not implemented. Although the IRS agreed to this recommendation, the governing body created in May 2013 is not providing agencywide Active Directory oversight,\u201d the report said. \u201cSecurity weaknesses in Active Directory could allow unauthorized personnel to gain access to critical IRS servers, applications and account management.<\/p>\n\n\n\t<aside class=\"smg-interstitial-link wp-block-smg-interstitial-link\">\n\t\t<a href=\"https:\/\/one.sightlinemg.com\/federaltimes\/it-networks\/2018\/07\/02\/the-irs-struggles-to-tackle-legacy-it-problems\/\" class=\"smg-interstitial-link__inner\">\n\t\t\t\t\t\t\t<div class=\"smg-interstitial-link__media\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"166\" src=\"https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/IRS-building.jpg.jpg?w=300\" class=\"smg-interstitial-link__image wp-post-image\" alt=\"\" \/>\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"smg-interstitial-link__content\">\n\t\t\t\t<span class=\"smg-interstitial-link__kicker\">Related<\/span>\n\t\t\t\t<h3 class=\"smg-interstitial-link__title\">The IRS struggles to tackle legacy IT problems<\/h3>\n\t\t\t\t\t\t\t\t\t<p class=\"smg-interstitial-link__excerpt\">Personnel for both the Internal Revenue Service and the Government Accountability Office have acknowledged recently that the IRS is riddled with outdated hardware and software. Can the agency adapt?<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/a>\n\t<\/aside>\n\t\n\n\n<p class=\"wp-block-paragraph\">Members of the Active Directory Technical Advisory Board told investigators that they did not know how many active \u201cforests\u201d \u2014 the largest collection of objects within an Active Director Network \u2014 existed within IRS. And when the Criminal Investigation division upgraded its functional forest in April 2017, officials could produce no evidence that the board had been made aware of the change.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cBased on the results of our review, the ADTAB did not meet the basic requirements of its charter. The ADTAB does not provide adequate governance or oversight of the IRS AD architecture,\u201d the report said.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the process of reviewing Active Directory oversight, the TIGTA also found that Criminal Investigation computer rooms lacked physical security controls, such as designating those rooms \u201cLimited Areas,\u201d enforcing two-factor authentication to access the area, safeguarding lock combinations to the rooms, maintaining accessible fire extinguishers and maintaining emergency power.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">And while the Criminal Investigation computer rooms had adequate vulnerability scanning, the division continued to use an outdated application to validate security requirements. That application found that all CI domain controllers failed scans, but data owners were not given feedback on how to fix problems the application found.<\/p>\n\n\n\t<aside class=\"smg-interstitial-link wp-block-smg-interstitial-link\">\n\t\t<a href=\"https:\/\/one.sightlinemg.com\/federaltimes\/management\/2016\/02\/11\/irs-fends-off-intruders-in-botnet-attack\/\" class=\"smg-interstitial-link__inner\">\n\t\t\t\t\t\t\t<div class=\"smg-interstitial-link__media\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"232\" src=\"https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/635869116130389722-fed-1040jpg.jpg?w=300\" class=\"smg-interstitial-link__image wp-post-image\" alt=\"\" \/>\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"smg-interstitial-link__content\">\n\t\t\t\t<span class=\"smg-interstitial-link__kicker\">Related<\/span>\n\t\t\t\t<h3 class=\"smg-interstitial-link__title\">IRS fends off intruders in botnet attack<\/h3>\n\t\t\t\t\t\t\t\t\t<p class=\"smg-interstitial-link__excerpt\">The tax agency is getting hit from all sides but was able to ward off at least one recent attack.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/a>\n\t<\/aside>\n\t\n\n\n<p class=\"wp-block-paragraph\">The CI also failed to remove the accounts of inactive users in a timely manner, leaving their systems vulnerable to exploitation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cAttackers frequently discover and exploit legitimate but inactive user accounts to impersonate legitimate users, thereby making discovery of attacker behavior difficult for IRS network monitoring tools. Terminated contractor and employee accounts have often been misused in this way. This places CI\u2019s sensitive data at risk for loss, manipulation and other unauthorized access,\u201d the report said.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The TIGTA gave the IRS 10 recommendations for improving Active Directory oversight and resolving physical and digital vulnerabilities in the Criminal Investigation computer rooms, and the agency agreed with all of them.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An Inspector General report found that Internal Revenue Service oversight of system security practices was not up to standard.<\/p>\n","protected":false},"author":7,"featured_media":53121,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_canonical":"","_acf":"","_yoast_wpseo_primary_category":14,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","_smg_distribution_targets":{"9":{"categories":["cyber"],"primary_category":"cyber"}}},"categories":[106,31,110,14,33],"tags":[],"coauthors":[2853],"class_list":["post-23046","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-daily-brief","category-home","category-it-cloud-report","category-it-networks","category-newsletters"],"acf":{"subheadline":"","legacy_arc_id":"JVJHXNWSXBEUDDQSL6V5I4WKVE","arc_canonical_url":"\/civilian\/2018\/07\/10\/irs-systems-found-vulnerable-to-unauthorized-access\/","remove_feature_photo":false,"is_sponsored":false,"subtype":"","redirect_url":"","disable_inline_ads":false,"native_logo_pretext":"Presented 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