CVE-2021-33592CWE-20

NAVER Toolbar before 4.0.30.323 allows remote attackers to execute arbitrary code via a crafted upgrade.xml file

published July 19, 2021

CVSS
—
EPSS
2%
Percentile
81.7
In the wild
Unconfirmed
What it is

⚠️ A crafted upgrade.xml file is all it takes for a remote attacker to execute arbitrary code! Talk about a sneaky way to bypass security! 🔍 Think of it like a concert ticket that looks official but was printed on a home printer. If nobody checks it closely, the counterfeit ticket holder gets in and can wreak havoc behind the scenes! If an attacker successfully exploits this vulnerability, they could execute any code they want on a user's machine—imagine someone crashing the party and causing chaos while you’re all just trying to enjoy the show. This could lead to unauthorized access, data theft, or further system compromise.

Put simply

Think of it like a concert ticket that looks official but was printed on a home printer. If nobody checks it closely, the counterfeit ticket holder gets in and can wreak havoc behind the scenes! This vulnerability lies in the NAVER Toolbar, where special characters in the filename parameter of the crafted upgrade.xml file enable an attacker to bypass the code signing check and execute arbitrary code remotely.

What to do

If an attacker successfully exploits this vulnerability, they could execute any code they want on a user's machine—imagine someone crashing the party and causing chaos while you’re all just trying to enjoy the show. This could lead to unauthorized access, data theft, or further system compromise. To mitigate this risk, upgrade to NAVER Toolbar version 4.0.30.323 or later. It's also crucial to review your file validation logic to ensure that only properly signed updates are accepted. Keep an eye on your version updates to stay secure! You've got this! With a simple update, you can lock this down and keep your system safe! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02118 · 81.7th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2021-07-19T05:55Z
EPSS history
Timeline
  • 19 JUL 05:55Z
    NAVER Toolbar before 4.0.30.323 allows remote attackers to execute arbitrary code via a crafted upgrade.xml file
    cvelistv5