CVE-2020-4074 is a critical authentication bypass vulnerability affecting PrestaShop e-commerce platforms. This flaw allows attackers to manipulate the authentication process, enabling them to execute administrative commands without proper credentials. Versions 1.5.0.0 through 1.7.6.6 are vulnerable. A patch is available in version 1.7.6.6.
The impact of CVE-2020-4074 is severe. An attacker exploiting this vulnerability can gain complete control over the PrestaShop store's administrative interface. This includes the ability to modify product information, customer data, order details, and even install malicious code. Successful exploitation could lead to data breaches, financial fraud, website defacement, and complete compromise of the e-commerce platform. The attacker could also leverage this access to pivot to other systems within the network if the PrestaShop server has access to internal resources, expanding the blast radius significantly. The ability to forge requests effectively bypasses all standard authentication mechanisms, making it a particularly dangerous vulnerability.
CVE-2020-4074 was published on July 2, 2020. While no widespread active exploitation campaigns have been publicly reported, the vulnerability's ease of exploitation and the prevalence of PrestaShop installations make it a potential target. There are publicly available proof-of-concept (POC) exploits demonstrating the authentication bypass. The vulnerability is not currently listed on KEV or EPSS, suggesting a low to medium probability of exploitation, but the availability of POCs warrants immediate attention and patching.
エクスプロイト状況
EPSS
0.43% (63% パーセンタイル)
CVSS ベクトル
The primary mitigation for CVE-2020-4074 is to immediately upgrade PrestaShop to version 1.7.6.6 or later. If upgrading is not immediately feasible, consider implementing temporary workarounds. Web Application Firewalls (WAFs) configured with rules to detect and block suspicious authentication requests can provide a layer of defense. Carefully review and restrict access to the PrestaShop database and administrative interface, limiting access to only authorized personnel. Monitor PrestaShop logs for unusual activity, particularly failed login attempts and requests to sensitive administrative endpoints. After upgrading, confirm the fix by attempting to access the admin panel with invalid credentials; authentication should be properly enforced.
PrestaShopをバージョン1.7.6.6以降にアップデートしてください。このバージョンは、攻撃者が不正な管理者コマンドを実行できる認証の脆弱性を修正しています。
脆弱性分析と重要アラートをメールでお届けします。
It's a HIGH severity authentication bypass vulnerability in PrestaShop allowing attackers to forge requests and execute admin commands.
You are affected if you are running PrestaShop versions 1.5.0.0 through 1.7.6.6. Check your version and upgrade immediately.
Upgrade PrestaShop to version 1.7.6.6 or later. Implement WAF rules and restrict access as temporary mitigations if immediate upgrade is impossible.
While no widespread campaigns are known, POCs exist, making it a potential target. Proactive patching is crucial.
Refer to the official PrestaShop security advisory and the NVD entry for CVE-2020-4074 for detailed information.