{"id":3226,"date":"2021-12-13T13:09:28","date_gmt":"2021-12-13T04:09:28","guid":{"rendered":"https:\/\/blog.boxcorea.com\/wp\/?p=3226"},"modified":"2021-12-14T19:56:10","modified_gmt":"2021-12-14T10:56:10","slug":"%eb%a6%ac%eb%88%85%ec%8a%a4-%ec%84%9c%eb%b2%84%ec%97%90%ec%84%9c-apache-log4j-%ec%82%ac%ec%9a%a9-%ec%9c%a0%eb%ac%b4-%ed%99%95%ec%9d%b8-%ed%95%98%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/blog.boxcorea.com\/wp\/archives\/3226","title":{"rendered":"\ub9ac\ub205\uc2a4 \uc11c\ubc84\uc5d0\uc11c apache-log4j \uc0ac\uc6a9 \uc720\ubb34 \ud655\uc778 \ud558\uae30."},"content":{"rendered":"

\ub9ac\ub205\uc2a4 \uc11c\ubc84\uc5d0\uc11c apache-log4j \uc0ac\uc6a9 \uc720\ubb34 \ud655\uc778 \ud558\uae30.<\/p>\n

apache-log4j \ubcf4\uc548 \uc774\uc288\uac00 \ubc1c\uc0dd\ud568.<\/p>\n

\uac1c\ubc1c\uacfc \ubc30\ud3ec\uac00 \ub05d\ub098\uace0 \uc720\uc9c0 \ubcf4\uc218\ub3c4 \uc9c4\ud589\ud558\uace0 \uc788\ub2e4\uba74 \uac1c\ubc1c\uc790\uc5d0\uac8c \ud655\uc778\ud558\uba74 \ub418\uaca0\uc9c0\ub9cc, \uc720\uc9c0 \ubcf4\uc218\ub97c \uc9c4\ud589\ud558\uc9c0 \uc54a\ub294 \uc0ac\uc774\ud2b8 \uad00\ub9ac\uc790\ub4e4\uc774 \uc0ac\uc6a9 \uc5ec\ubd80\uc640 \ubc84\uc804\uae4c\uc9c0 \ud655\uc778\ud558\uae30\uac00 \uc5b4\ub835\ub2e4\ub294 \ubb38\uc81c\uac00 \uc788\ub2e4.<\/p>\n

\uac04\ub2e8\ud558\uac8c \uc544\ub798\uc758 \ubc29\ubc95\uc73c\ub85c log4j \uc0ac\uc6a9\uc744 \ud655\uc778 \ud574 \ubcf4\uc790.<\/p>\n

\uba3c\uc800, \uc790\uc2e0\uc758 \uc11c\ubc84\uac00 \uc6f9 \uc11c\ubc84\ub85c \ub3d9\uc791\ud558\ub294\uc9c0 \ud655\uc778\ud574\uc57c \ud55c\ub2e4.<\/p>\n

# netstat -antp | grep -i listen\r\ntcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      677\/httpd\r\ntcp        0      0 0.0.0.0:8400            0.0.0.0:*               LISTEN      2314\/cvd\r\ntcp        0      0 0.0.0.0:46387           0.0.0.0:*               LISTEN      2314\/cvd\r\ntcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      963\/sshd\r\ntcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      1995\/master\r\ntcp        0      0 0.0.0.0:49114           0.0.0.0:*               LISTEN      2315\/ClMgrS\r\ntcp        0      0 0.0.0.0:443             0.0.0.0:*               LISTEN      677\/httpd\r\ntcp        0      0 127.0.0.1:34107         0.0.0.0:*               LISTEN      2314\/cvd\r\ntcp        0      0 0.0.0.0:42276           0.0.0.0:*               LISTEN      2314\/cvd\r\ntcp        0      0 127.0.0.1:199           0.0.0.0:*               LISTEN      962\/snmpd\r\ntcp6       0      0 :::8009                 :::*                    LISTEN      1418\/java\r\ntcp6       0      0 :::8080                 :::*                    LISTEN      1418\/java\r\ntcp6       0      0 :::22                   :::*                    LISTEN      963\/sshd\r\ntcp6       0      0 ::1:25                  :::*                    LISTEN      1995\/master\r\ntcp6       0      0 127.0.0.1:8005          :::*                    LISTEN      1418\/java\r\n<\/pre>\n
<\/p>\n
\ub610\ub294, <\/p>\n
# ss -ant | grep -i listen\r\nLISTEN     0      128          *:80                       *:*\r\nLISTEN     0      64           *:8400                     *:*\r\nLISTEN     0      8            *:46387                    *:*\r\nLISTEN     0      128          *:22                       *:*\r\nLISTEN     0      100    127.0.0.1:25                       *:*\r\nLISTEN     0      8            *:49114                    *:*\r\nLISTEN     0      128          *:443                      *:*\r\nLISTEN     0      10     127.0.0.1:34107                    *:*\r\nLISTEN     0      8            *:42276                    *:*\r\nLISTEN     0      128    127.0.0.1:199                      *:*\r\nLISTEN     0      100         :::8009                    :::*\r\nLISTEN     0      100         :::8080                    :::*\r\nLISTEN     0      128         :::22                      :::*\r\nLISTEN     0      100        ::1:25                      :::*\r\nLISTEN     0      1         ::ffff:127.0.0.1:8005                    :::*\r\n<\/pre>\n
\uc704\uc5d0\uc11c 80, 443 \ud3ec\ud2b8\uac00 LISTEN \uc0c1\ud0dc\uc774\ubbc0\ub85c, \uc6f9\uc11c\ubc84\ub85c \uc774\uc6a9\uc911<\/p>\n
\uc774\uc81c,  jsp\ub97c \uc0ac\uc6a9\ud558\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4.  <\/p>\n
# ps -ef | grep -i java\r\nroot      17656      1  0 Feb21 ?        13:36:20 \/opt\/java\/bin\/java -Djava.util.logging.config.file=\/opt\/tomcat\/conf\/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Dorg.apache.catalina.security.SecurityListener.UMASK=0027 -Djava.net.preferIPv4Stack=true -Dignore.endorsed.dirs= -classpath \/opt\/tomcat\/bin\/bootstrap.jar:\/opt\/tomcat\/bin\/tomcat-juli.jar -Dcatalina.base=\/opt\/tomcat -Dcatalina.home=\/opt\/tomcat -Djava.io.tmpdir=\/opt\/tomcat\/temp org.apache.catalina.startup.Bootstrap start\r\nroot      67650  67626  0 11:41 pts\/0    00:00:00 grep --color=auto -i java\r\n<\/pre>\n
java \ud504\ub85c\uc138\uc2a4\uac00 \uc704\uc640 \ube44\uc2b7\ud558\uac8c \ubcf4\uc778\ub2e4\uba74 jsp\ub97c \uc0ac\uc6a9\ud55c\ub2e4\uace0 \ubcf4\uba74 \ub41c\ub2e4.<\/p>\n
\uc774\uc81c, \ubb38\uc81c\uc758 apache-log4j\ub97c find \uba85\ub839\uc73c\ub85c \ucc3e\uc544\ubcf8\ub2e4. <\/p>\n
# find \/ -name log4j* -print\r\n\/opt\/apache-tomcat-8.5.57\/webapps\/lrm\/WEB-INF\/classes\/log4j.xml\r\n\/opt\/apache-tomcat-8.5.57\/webapps\/lrm\/WEB-INF\/lib\/log4j-1.2.15.jar\r\n\/opt\/apache-tomcat-8.5.57\/webapps\/lrm\/WEB-INF\/lib\/log4jdbc-log4j2-jdbc4-1.16.jar\r\n\/opt\/apache-tomcat-8.5.57\/webapps\/QRreading\/WEB-INF\/classes\/log4j.xml\r\n\/opt\/apache-tomcat-8.5.57\/webapps\/QRreading\/WEB-INF\/classes\/log4jdbc.log4j2.properties\r\n\/opt\/apache-tomcat-8.5.57\/webapps\/QRreading\/WEB-INF\/lib\/log4j-core-2.0.1.jar\r\n\/opt\/apache-tomcat-8.5.57\/webapps\/QRreading\/WEB-INF\/lib\/log4j-1.2.15.jar\r\n\/opt\/apache-tomcat-8.5.57\/webapps\/QRreading\/WEB-INF\/lib\/log4j-api-2.0.1.jar\r\n\/opt\/apache-tomcat-8.5.57\/webapps\/QRreading\/WEB-INF\/lib\/log4jdbc-log4j2-jdbc4-1.16.jar\r\n\/opt\/apache-tomcat-8.5.57\/webapps\/QRreading\/WEB-INF\/lib\/log4jdbc-remix-0.2.7.jar\r\n<\/pre>\n
log4j\uad00\ub828 \ud30c\uc77c\uc774 \ubcf4\uc774\ubbc0\ub85c \uc77c\ub2e8 log4j\ub97c \uc0ac\uc6a9\ud55c\ub2e4\uace0 \ubcfc \uc218 \uc788\ub2e4. <\/p>\n
\ucd94\uac00: \uc0ac\uc6a9\uc911\uc778 \ubc84\uc804\uc740 log4j-core, log4j-api \ub4a4\uc758 \uc22b\uc790\uc774\ub2e4. \uc704\uc758 \uc608\uc5d0\uc11c\ub294 2.0.1\uc774\uba70, \ud328\uce58 \ub300\uc0c1\uc774\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
\ub9ac\ub205\uc2a4 \uc11c\ubc84\uc5d0\uc11c apache-log4j \uc0ac\uc6a9 \uc720\ubb34 \ud655\uc778 \ud558\uae30. apache-log4j \ubcf4\uc548 \uc774\uc288\uac00 \ubc1c\uc0dd\ud568. \uac1c\ubc1c\uacfc \ubc30\ud3ec\uac00 \ub05d\ub098\uace0 \uc720\uc9c0 \ubcf4\uc218\ub3c4 \uc9c4\ud589\ud558\uace0 \uc788\ub2e4\uba74 \uac1c\ubc1c\uc790\uc5d0\uac8c \ud655\uc778\ud558\uba74 \ub418\uaca0\uc9c0\ub9cc, \uc720\uc9c0 \ubcf4\uc218\ub97c \uc9c4\ud589\ud558\uc9c0 \uc54a\ub294 \uc0ac\uc774\ud2b8 \uad00\ub9ac\uc790\ub4e4\uc774 \uc0ac\uc6a9 \uc5ec\ubd80\uc640 \ubc84\uc804\uae4c\uc9c0 \ud655\uc778\ud558\uae30\uac00 \uc5b4\ub835\ub2e4\ub294 \ubb38\uc81c\uac00 \uc788\ub2e4. \uac04\ub2e8\ud558\uac8c \uc544\ub798\uc758 \ubc29\ubc95\uc73c\ub85c log4j \uc0ac\uc6a9\uc744 \ud655\uc778 \ud574 \ubcf4\uc790. \uba3c\uc800, \uc790\uc2e0\uc758 \uc11c\ubc84\uac00 \uc6f9 \uc11c\ubc84\ub85c \ub3d9\uc791\ud558\ub294\uc9c0 \ud655\uc778\ud574\uc57c \ud55c\ub2e4. # netstat -antp | grep … <\/p>\n
Continue reading<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[6],"tags":[906,910,911,908,907,912,909],"class_list":{"0":"post-3226","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-application","7":"tag-log4j","8":"tag-log4j-2","9":"tag-log4j-","10":"tag-log4j--","14":"item-wrap"},"yoast_head":"\n\ub9ac\ub205\uc2a4 \uc11c\ubc84\uc5d0\uc11c apache-log4j \uc0ac\uc6a9 \uc720\ubb34 \ud655\uc778 \ud558\uae30. - Blog-boxcorea<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.boxcorea.com\/wp\/archives\/3226\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\ub9ac\ub205\uc2a4 \uc11c\ubc84\uc5d0\uc11c apache-log4j \uc0ac\uc6a9 \uc720\ubb34 \ud655\uc778 \ud558\uae30. - Blog-boxcorea\" \/>\n<meta property=\"og:description\" content=\"\ub9ac\ub205\uc2a4 \uc11c\ubc84\uc5d0\uc11c apache-log4j \uc0ac\uc6a9 \uc720\ubb34 \ud655\uc778 \ud558\uae30. apache-log4j \ubcf4\uc548 \uc774\uc288\uac00 \ubc1c\uc0dd\ud568. \uac1c\ubc1c\uacfc \ubc30\ud3ec\uac00 \ub05d\ub098\uace0 \uc720\uc9c0 \ubcf4\uc218\ub3c4 \uc9c4\ud589\ud558\uace0 \uc788\ub2e4\uba74 \uac1c\ubc1c\uc790\uc5d0\uac8c \ud655\uc778\ud558\uba74 \ub418\uaca0\uc9c0\ub9cc, \uc720\uc9c0 \ubcf4\uc218\ub97c \uc9c4\ud589\ud558\uc9c0 \uc54a\ub294 \uc0ac\uc774\ud2b8 \uad00\ub9ac\uc790\ub4e4\uc774 \uc0ac\uc6a9 \uc5ec\ubd80\uc640 \ubc84\uc804\uae4c\uc9c0 \ud655\uc778\ud558\uae30\uac00 \uc5b4\ub835\ub2e4\ub294 \ubb38\uc81c\uac00 \uc788\ub2e4. \uac04\ub2e8\ud558\uac8c \uc544\ub798\uc758 \ubc29\ubc95\uc73c\ub85c log4j \uc0ac\uc6a9\uc744 \ud655\uc778 \ud574 \ubcf4\uc790. \uba3c\uc800, \uc790\uc2e0\uc758 \uc11c\ubc84\uac00 \uc6f9 \uc11c\ubc84\ub85c \ub3d9\uc791\ud558\ub294\uc9c0 \ud655\uc778\ud574\uc57c \ud55c\ub2e4. # netstat -antp | grep … Continue reading\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blog.boxcorea.com\/wp\/archives\/3226\" \/>\n<meta property=\"og:site_name\" content=\"Blog-boxcorea\" \/>\n<meta property=\"article:published_time\" content=\"2021-12-13T04:09:28+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-12-14T10:56:10+00:00\" \/>\n<meta name=\"author\" content=\"snowffox\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"snowffox\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/blog.boxcorea.com\/wp\/archives\/3226#article\",\"isPartOf\":{\"@id\":\"https:\/\/blog.boxcorea.com\/wp\/archives\/3226\"},\"author\":{\"name\":\"snowffox\",\"@id\":\"https:\/\/blog.boxcorea.com\/wp\/#\/schema\/person\/6d8e12df2429d663a0a4e8362fbb650a\"},\"headline\":\"\ub9ac\ub205\uc2a4 \uc11c\ubc84\uc5d0\uc11c apache-log4j \uc0ac\uc6a9 \uc720\ubb34 \ud655\uc778 \ud558\uae30.\",\"datePublished\":\"2021-12-13T04:09:28+00:00\",\"dateModified\":\"2021-12-14T10:56:10+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/blog.boxcorea.com\/wp\/archives\/3226\"},\"wordCount\":23,\"commentCount\":0,\"keywords\":[\"log4j\",\"log4j 2\",\"log4j \ubc84\uc804\",\"log4j \uc0ac\uc6a9 \uc5ec\ubd80\",\"log4j \uc0ac\uc6a9 \uc720\ubb34\",\"log4j \uc0ac\uc6a9 \ud655\uc778\",\"log4j \ud655\uc778\"],\"articleSection\":[\"Application(\uc5b4\ud50c\ub9ac\ucf00\uc774\uc158)\"],\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/blog.boxcorea.com\/wp\/archives\/3226#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blog.boxcorea.com\/wp\/archives\/3226\",\"url\":\"https:\/\/blog.boxcorea.com\/wp\/archives\/3226\",\"name\":\"\ub9ac\ub205\uc2a4 \uc11c\ubc84\uc5d0\uc11c apache-log4j \uc0ac\uc6a9 \uc720\ubb34 \ud655\uc778 \ud558\uae30. - 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