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WordPress security: More than 600,000 sites hit by blind SQLi vulnerability in WP Statistics plugin

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Adam Bannister

20 Might 2021 at 13:33 UTC

Up to date: 20 Might 2021 at 13:45 UTC

Delicate database knowledge in danger if site owners fail to replace techniques

WordPress security: More than 600,000 sites hit by blind SQLi vulnerability in WP Statistics plugin

WP Statistics, a well-liked internet analytics plugin for WordPress, contained a time-based blind SQL injection vulnerability that, if exploited, might end in delicate info being exfiltrated from a web site’s database.

Site owners of WordPress websites working the open source plugin, which quantity greater than 600,000, have been urged to replace their techniques as quickly as attainable.

The character of the excessive severity (CVSS rating 7.5) pre-authenticated vulnerability (CVE-2021-24340) means “exfiltrating info could be a comparatively gradual course of, and it could be impractical to make use of it to extract bulk information”, stated Ram Gall, risk analyst and QA engineer at WordPress safety platform Wordfence, in a blog post revealed on Tuesday (Might 18).

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Nonetheless, “high-value info resembling consumer emails, password hashes, and encryption keys and salts may very well be extracted in a matter of hours with the assistance of automated instruments resembling sqlmap.

In a focused assault, this vulnerability may very well be used to extract personally identifiable info from e-commerce websites containing buyer info.

“This underscores the significance of getting safety protections with an endpoint firewall in place wherever delicate knowledge is saved.”

Establishing the assault

Amongst different visitors knowledge, WP Statistics supplies detailed figures about which pages web site customers go to.

Accessing a ‘Pages’ menu generates an SQL question that shows these statistics, stated Gall.

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Though the operate is meant to be restricted to directors, “it was attainable to start out loading this web page’s constructor by sending a request to wp-admin/admin.php with the web page parameter set to ”, continued the risk analyst.

“Because the SQL question ran within the Web page constructor,” any customer might set off the SQL question with out logging in. “A malicious actor might then provide malicious values for the ID or sort parameters.”

No esc_ape

As with one other time-based blind SQL injection bug Wordfence just lately discovered in CleanTalk’s AntiSpam plugin, using an operate didn’t repel the assault for need of a ready assertion, stated Gall.

Elaborating on the difficulty, the risk analyst instructed The Every day Swig: “We’ve seen a number of cases previously the place escaping enter was inadequate and led to a false sense of safety, and anticipate to see extra sooner or later. Escaping enter will be ample in some instances, nevertheless it’s probably not a secure assumption anymore.

He added: “Ready statements have been thought of a finest follow for a very long time now, and whereas some builders might have averted them previously as a result of they are often tough to implement manually, there’s probably not an excuse for not utilizing them in WordPress because of the convenience of use that permits.”

Disclosure timeline

The Wordfence risk intelligence crew alerted WP Statistics developer VeronaLabs to the vulnerability on March 13, and a launch containing a fix, model 13.0.8, was issued on March 25.Content material-length

The vulnerability impacts all earlier variations.

Mostafa Soufi, co-founder of VeronaLabs, instructed The Every day Swig that the bug was addressed “within the question on the admin facet”.

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