This allows for more elaborate and complex attacks to occur. The vulnerability allows for some post-exploitation techniques to be utilised, such as installing backdoors and JSP post-exploitation tool kits. The vulnerability alone may not be hugely significant, but when put into the context of an attack it can have much greater consequences. So what’s the true potential impact of the vulnerability if it were exploited? But have you assessed the potential impact correctly and taken steps to remediate this issue? Of course, the vulnerabilities will have been dealt with through organisations’ patching programs, if they were picked up. The vulnerabilities appear to have gone unnoticed because they have received little media attention and the vulnerability description perhaps doesn’t do justice to the potential scope of the vulnerability:Īpache Struts 2 before 2.3.14.1 allows remote attackers to execute arbitrary OGNL code These recent vulnerabilities for Struts 2 appear to have gone under the radar in terms of patching urgency and active exploitation is now happening in the wild. In early July and then in mid July, Apache Struts 2 released information on two new vulnerabilities. Patch released by Navicat – 26th April 2018Īdvisory published by 7 Elements – 1st May 2018Īpache Struts 2 Exploit – have you patched? Requested confirmation that advisory has been recieved by Navicat – 9th April 2018Ĭonfirmation of the issue by Navicat – 9th April 2018 The latest version of Navicat Professional can be found on the Navicat website. This issue has been patched and the patch notes can be found here. Which will land at the payload, represented in the proof of concept as the character ‘D’ (\x44). This will result an SEH overwrite, as demonstrated by the following screenshot:įrom here, we can replace SEH with POP POP RET instructions, located at 10012a75:Īnd replace nSEH with the following code to jump to our payload: ![]() Create new Oracle Connection > paste contents of "navicatPOC.txt" into host field and test connection to trigger overflow.
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