CVE-2020-17530
100Vexday Risk Score
Patch now. It under exploitation confirmed by CISA and has a working public exploit.
ssvc Actcvss 9.8epss 96%
from disclosure to weapon0 days
Published on NVDDec 11
1st PoCDec 9
metasploitSep 14
CISA KEV+327d
exploitation probability
96%top 1% of all CVEs
observed exploitation
yesCISA + VulnCheck
24 public exploit(s)
Action required by CISAfederal deadline: 2022-05-03
Apply updates per vendor instructions.
Versions
Affected
maven/org.apache.struts:struts2-core >= 2.0.0, < 2.5.26
Fixed in
maven/org.apache.struts:struts2-core 2.5.26
Researched and written with AI from the vendor advisory and public analysis, with the sources above. Always confirm the fixed version in the official advisory before acting.
Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution. Affected software : Apache Struts 2.0.0 - Struts 2.5.25.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Apache Software Foundation · Apache Strutspublic PoCs found — 24
githubgithub.com/ka1n4t/CVE-2020-17530★ 64githubgithub.com/wuzuowei/CVE-2020-17530★ 46githubgithub.com/Al1ex/CVE-2020-17530★ 29githubgithub.com/fengziHK/CVE-2020-17530-strust2-061★ 7githubgithub.com/uzzzval/CVE-2020-17530★ 5githubgithub.com/CyborgSecurity/CVE-2020-17530★ 4githubgithub.com/secpool2000/CVE-2020-17530★ 1githubgithub.com/fatkz/CVE-2020-17530★ 0githubgithub.com/ludy-dev/freemarker_RCE_struts2_s2-061★ 0githubgithub.com/killmonday/CVE-2020-17530-s2-061★ 0githubgithub.com/keyuan15/CVE-2020-17530★ 0githubgithub.com/nth347/CVE-2020-17530★ 0githubgithub.com/shoucheng3/apache__struts_CVE-2020-17530_2-5-25★ 0vulncheckvulncheck.com/xdb/20acac973541unverifiedvulncheckvulncheck.com/xdb/e3fa2afdc5f2unverifiedvulncheckvulncheck.com/xdb/bfb08d5ee460unverifiedvulncheckvulncheck.com/xdb/2413521dca63unverifiedvulncheckvulncheck.com/xdb/dbd52a7e6d06unverifiedvulncheckvulncheck.com/xdb/d5f1da1e2721unverifiedvulncheckvulncheck.com/xdb/20d585ac92c4unverifiedvulncheckvulncheck.com/xdb/e2133615d248unverifiedvulncheckvulncheck.com/xdb/de8e0e425aa8unverifiedvulncheckvulncheck.com/xdb/5fd88116c567unverifiedcve_referencepacketstormsecurity.com/files/160721/Apache-Struts-2-Forced-Multi-OGNL-Evaluation.htmlunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://jvn.jp/en/jp/JVN43969166/index.htmlhttp://packetstormsecurity.com/files/160721/Apache-Struts-2-Forced-Multi-OGNL-Evaluation.htmlhttps://cwiki.apache.org/confluence/display/WW/S2-061https://security.netapp.com/advisory/ntap-20210115-0005/https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-17530https://www.oracle.com/security-alerts/cpuApr2021.htmlhttps://www.oracle.com/security-alerts/cpuapr2022.htmlhttps://www.oracle.com/security-alerts/cpujan2021.htmlhttps://www.oracle.com/security-alerts/cpujan2022.htmlhttps://www.oracle.com//security-alerts/cpujul2021.htmlhttps://www.oracle.com/security-alerts/cpuoct2021.htmlhttp://www.openwall.com/lists/oss-security/2022/04/12/6