CVE-2020-1938

Katalog CVE

CVSS 9.8 · Critical KEV · sudah dieksploitasi EPSS 99,3%

Kerentanan pada apache geode, apache tomcat +19 lainnya. Skor CVSS 3.1 9.8 (Critical) menurut NVD. Masuk katalog KEV CISA pada 3 Maret 2022, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP connection. If such connections are available to an attacker, they can be exploited in ways that may be surprising. In Apache Tomcat 9.0.0.M1 to 9.0.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99, Tomcat shipped with an AJP Connector enabled by default that listened on all configured IP addresses. It was expected (and recommended in the security guide) that this Connector would be disabled if not required. This vulnerability report identified a mechanism that allowed: - returning arbitrary files from anywhere in the web application - processing any file in the web application as a JSP Further, if the web application allowed file upload and stored those files within the web application (or the attacker was able to control the content of the web application by some other means) then this, along with the ability to process a file as a JSP, made remote code execution possible. It is important to note that mitigation is only required if an AJP port is accessible to untrusted users. Users wishing to take a defence-in-depth approach and block the vector that permits returning arbitrary files and execution as JSP may upgrade to Apache Tomcat 9.0.31, 8.5.51 or 7.0.100 or later. A number of changes were made to the default AJP Connector configuration in 9.0.31 to harden the default configuration. It is likely that users upgrading to 9.0.31, 8.5.51 or 7.0.100 or later will need to make small changes to their configurations.

Rincian

Terbit di NVD

24 Februari 2020

Terakhir diubah

25 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

EPSS (30 hari)

99,3% peluang dieksploitasi; lebih tinggi dari 99,9% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Apache Tomcat Improper Privilege Management Vulnerability

Masuk KEV

3 Maret 2022

Tenggat CISA

17 Maret 2022 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

Apply updates per vendor instructions.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://lists.apache.org/thread.html/r7c6f492fbd39af34a68681dbbba0468490ff1a97a1bd79c6a53610ef%40%3Cannounce.t... mailing list · advisory vendor
• https://lists.apache.org/thread.html/r8f7484589454638af527182ae55ef5b628ba00c05c5b11887c922fb1%40%3Cnotificati... mailing list · advisory vendor
• https://lists.apache.org/thread.html/r90890afea72a9571d666820b2fe5942a0a5f86be406fa31da3dd0922%40%3Cannounce.a... mailing list · advisory vendor
• https://lists.apache.org/thread.html/ra7092f7492569b39b04ec0decf52628ba86c51f15efb38f5853e2760%40%3Cnotificati... mailing list · advisory vendor
• https://lists.apache.org/thread.html/rf1bbc0ea4a9f014cf94df9a12a6477d24a27f52741dbc87f2fd52ff2%40%3Cissues.geo... mailing list · advisory vendor
• https://lists.apache.org/thread.html/rf992c5adf376294af31378a70aa8a158388a41d7039668821be28df3%40%3Ccommits.to... mailing list · advisory vendor
• https://lists.apache.org/thread.html/r9f119d9ce9239114022e13dbfe385b3de7c972f24f05d6dbd35c1a2f%40%3Cusers.tomc... mailing list · patch
• https://lists.apache.org/thread.html/rb1c0fb105ce2b93b7ec6fc1b77dd208022621a91c12d1f580813cfed%40%3Cdev.tomcat... mailing list · patch
• https://lists.apache.org/thread.html/rd0774c95699d5aeb5e16e9a600fb2ea296e81175e30a62094e27e3e7%40%3Ccommits.of... mailing list · patch
• https://www.oracle.com/security-alerts/cpujan2021.html patch · advisory pihak ketiga
• https://www.oracle.com/security-alerts/cpujul2020.html patch · advisory pihak ketiga
• https://www.oracle.com/security-alerts/cpuoct2020.html patch · advisory pihak ketiga
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1938 pemerintah AS
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00002.html mailing list · advisory pihak ketiga
• http://support.blackberry.com/kb/articleDetail?articleNumber=000062739 advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2020/03/msg00006.html advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2020/05/msg00026.html advisory pihak ketiga
• https://security.gentoo.org/glsa/202003-43 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20200226-0002/ advisory pihak ketiga
• https://www.debian.org/security/2020/dsa-4673 advisory pihak ketiga
• https://www.debian.org/security/2020/dsa-4680 advisory pihak ketiga
• https://lists.apache.org/thread.html/rad36ec6a1ffc9e43266b030c22ceeea569243555d34fb4187ff08522%40%3Cnotificati... exploit · mailing list
• https://lists.apache.org/thread.html/r089dc67c0358a1556dd279c762c74f32d7a254a54836b7ee2d839d8e%40%3Cdev.tomee.... mailing list
• https://lists.apache.org/thread.html/r1125f3044a0946d1e7e6f125a6170b58d413ebd4a95157e4608041c7%40%3Cannounce.a... mailing list