====================================================================== CERT-Renater Note d'Information No. 2024/VULN310 _____________________________________________________________________ DATE : 01/07/2024 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Apache HTTP Server versions prior to 2.4.60. ===================================================================== https://lists.apache.org/thread/mxcs8l5f9q7dh8sxzwhrpntnt25fpd2t https://lists.apache.org/thread/zhzq56vjvz6610hycoj471gotljky894 https://lists.apache.org/thread/p2xfjsvpogyrg4hw9cjs2nrnqnl34qf0 https://lists.apache.org/thread/tzks8jdmh39hbl723d1xq61mcl4ndv13 https://lists.apache.org/thread/tf2nsognb0t1k8gkkvlbjnlk361cyd9q https://lists.apache.org/thread/mcvg3lvl7jb8j539mmzxdg1fvn2nnnq8 https://lists.apache.org/thread/bgz8pxqty2dz0c0fo55ckqbq1dj4bgol https://lists.apache.org/thread/8dslvr98bxcvzxz7cwq6h3q6h2xgk0oo _____________________________________________________________________ CVE-2024-39573: Apache HTTP Server: mod_rewrite proxy handler substitution Severity: moderate Affected versions: - Apache HTTP Server 2.4.0 through 2.4.59 Description: Potential SSRF in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to cause unsafe RewriteRules to unexpectedly setup URL's to be handled by mod_proxy. Users are recommended to upgrade to version 2.4.60, which fixes this issue. Credit: Orange Tsai (@orange_8361) from DEVCORE (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2024-39573 Timeline: 2024-04-01: reported _____________________________________________________________________ CVE-2024-38477: Apache HTTP Server: Crash resulting in Denial of Service in mod_proxy via a malicious request Severity: important Affected versions: - Apache HTTP Server 2.4.0 through 2.4.59 Description: null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash the server via a malicious request. Users are recommended to upgrade to version 2.4.60, which fixes this issue. Credit: Orange Tsai (@orange_8361) from DEVCORE (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2024-38477 Timeline: 2024-04-01: Reported _____________________________________________________________________ CVE-2024-38476: Apache HTTP Server may use exploitable/malicious backend application output to run local handlers via internal redirect Severity: important Affected versions: - Apache HTTP Server 2.4.0 through 2.4.59 Description: Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure, SSRF or local script execution via backend applications whose response headers are malicious or exploitable. Users are recommended to upgrade to version 2.4.60, which fixes this issue. Credit: Orange Tsai (@orange_8361) from DEVCORE (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2024-38476 Timeline: 2024-04-01: reported _____________________________________________________________________ CVE-2024-38475: Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path. Severity: important Affected versions: - Apache HTTP Server 2.4.0 through 2.4.59 Description: Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. Substitutions in server context that use a backreferences or variables as the first segment of the substitution are affected. Some unsafe RewiteRules will be broken by this change and the rewrite flag "UnsafePrefixStat" can be used to opt back in once ensuring the substitution is appropriately constrained. Credit: Orange Tsai (@orange_8361) from DEVCORE (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2024-38475 Timeline: 2024-04-01: reported _____________________________________________________________________ CVE-2024-38474: Apache HTTP Server weakness with encoded question marks in backreferences Severity: important Affected versions: - Apache HTTP Server 2.4.0 through 2.4.59 Description: Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to execute scripts in directories permitted by the configuration but not directly reachable by any URL or source disclosure of scripts meant to only to be executed as CGI. Users are recommended to upgrade to version 2.4.60, which fixes this issue. Some RewriteRules that capture and substitute unsafely will now fail unless rewrite flag "UnsafeAllow3F" is specified. Credit: Orange Tsai (@orange_8361) from DEVCORE (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2024-38474 Timeline: 2024-04-01: reported _____________________________________________________________________ CVE-2024-38473: Apache HTTP Server proxy encoding problem Severity: moderate Affected versions: - Apache HTTP Server 2.4.0 through 2.4.59 Description: Encoding problem in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows request URLs with incorrect encoding to be sent to backend services, potentially bypassing authentication via crafted requests. Users are recommended to upgrade to version 2.4.60, which fixes this issue. Credit: Orange Tsai (@orange_8361) from DEVCORE (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2024-38473 Timeline: 2024-04-01: reported _____________________________________________________________________ CVE-2024-38472: Apache HTTP Server on WIndows UNC SSRF Severity: important Affected versions: - Apache HTTP Server 2.4.0 through 2.4.59 Description: SSRF in Apache HTTP Server on Windows allows to potentially leak NTML hashes to a malicious server via SSRF and malicious requests or content Users are recommended to upgrade to version 2.4.60 which fixes this issue. Note: Existing configurations that access UNC paths will have to configure new directive "UNCList" to allow access during request processing. Credit: Orange Tsai (@orange_8361) from DEVCORE (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2024-38472 Timeline: 2024-04-01: reported _____________________________________________________________________ CVE-2024-36387: Apache HTTP Server: DoS by Null pointer in websocket over HTTP/2 Severity: low Affected versions: - Apache HTTP Server 2.4.55 through 2.4.59 Description: Serving WebSocket protocol upgrades over a HTTP/2 connection could result in a Null Pointer dereference, leading to a crash of the server process, degrading performance. Credit: Marc Stern () (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2024-36387 Timeline: 2024-05-27: fixed in r1918003 in trunk ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23/25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email:cert@support.renater.fr + =========================================================