The mod_proxy module in the Apache HTTP Server 1.3.x through 1.3.42, 2.0.x through 2.0.64, and 2.2.x through 2.2.21, when the Revision 1179239 patch is in place, does not properly interact with use of (1) RewriteRule and (2) ProxyPassMatch pattern matches for configuration of a reverse proxy, which allows remote attackers to send requests to intranet servers via a malformed URI containing an @ (at sign) character and a : (colon) character in invalid positions. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-3368.
総合評価: CVE-2011-4317 は悪用リスクが高い（65.4/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 77.98%、99 パーセンタイル） 根拠: 公開エクスプロイトが 3 件参照されています（Exploit-DB）。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| 36352 | exploit_db | edb | 2011-11-24 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-08 | 79.45% | 77.98% | -1.47% |
| 2 | 2026-05-29 | 81.92% | 79.45% | -2.47% |
| 3 | 2026-03-19 | — | 81.92% | — |
EPSS の全履歴 （全 52 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2011-4317 not yet assigned priority: Debian including 1 source packages (apache2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2011-4317 |
gentoo
|
high | CVE-2011-4317: 1 GLSA(s) (201206-25), 1 atom(s) (www-servers/apache); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-4317 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2011-4317 |
suse
|
medium | CVE-2011-4317 severity moderate: SUSE including 93 source package names (apache2-2.2.12-1.28.1, apache2-2.2.12-1.38.2, …), 123 product×package rows across 25 product lines (SUSE Linux Enterprise High Performance Computing 12 SP5, SUSE Linux Enterprise Module for Server Applications 15, … (25 product lines)): Fixed 123. | https://www.suse.com/security/cve/CVE-2011-4317/ |
ubuntu
|
medium | CVE-2011-4317 medium priority: Ubuntu including 1 source packages (apache2), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): released 5, needs-triage 1. | https://ubuntu.com/security/CVE-2011-4317 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| apache | http_server | 1.3 | cpe:2.3:a:apache:http_server:1.3:*:*:*:*:*:*:* |
| apache | http_server | 1.3.0 | cpe:2.3:a:apache:http_server:1.3.0:*:*:*:*:*:*:* |
| apache | http_server | 1.3.1 | cpe:2.3:a:apache:http_server:1.3.1:*:*:*:*:*:*:* |
| apache | http_server | 1.3.1.1 | cpe:2.3:a:apache:http_server:1.3.1.1:*:*:*:*:*:*:* |
| apache | http_server | 1.3.2 | cpe:2.3:a:apache:http_server:1.3.2:*:*:*:*:*:*:* |
| apache | http_server | 1.3.3 | cpe:2.3:a:apache:http_server:1.3.3:*:*:*:*:*:*:* |
| apache | http_server | 1.3.4 | cpe:2.3:a:apache:http_server:1.3.4:*:*:*:*:*:*:* |
| apache | http_server | 1.3.5 | cpe:2.3:a:apache:http_server:1.3.5:*:*:*:*:*:*:* |
| apache | http_server | 1.3.6 | cpe:2.3:a:apache:http_server:1.3.6:*:*:*:*:*:*:* |
| apache | http_server | 1.3.7 | cpe:2.3:a:apache:http_server:1.3.7:*:*:*:*:*:*:* |
| apache | http_server | 1.3.8 | cpe:2.3:a:apache:http_server:1.3.8:*:*:*:*:*:*:* |
| apache | http_server | 1.3.9 | cpe:2.3:a:apache:http_server:1.3.9:*:*:*:*:*:*:* |
| apache | http_server | 1.3.10 | cpe:2.3:a:apache:http_server:1.3.10:*:*:*:*:*:*:* |
| apache | http_server | 1.3.11 | cpe:2.3:a:apache:http_server:1.3.11:*:*:*:*:*:*:* |
| apache | http_server | 1.3.12 | cpe:2.3:a:apache:http_server:1.3.12:*:*:*:*:*:*:* |
| apache | http_server | 1.3.13 | cpe:2.3:a:apache:http_server:1.3.13:*:*:*:*:*:*:* |
| apache | http_server | 1.3.14 | cpe:2.3:a:apache:http_server:1.3.14:*:*:*:*:*:*:* |
| apache | http_server | 1.3.15 | cpe:2.3:a:apache:http_server:1.3.15:*:*:*:*:*:*:* |
| apache | http_server | 1.3.16 | cpe:2.3:a:apache:http_server:1.3.16:*:*:*:*:*:*:* |
| apache | http_server | 1.3.17 | cpe:2.3:a:apache:http_server:1.3.17:*:*:*:*:*:*:* |
| apache | http_server | 1.3.18 | cpe:2.3:a:apache:http_server:1.3.18:*:*:*:*:*:*:* |
| apache | http_server | 1.3.19 | cpe:2.3:a:apache:http_server:1.3.19:*:*:*:*:*:*:* |
| apache | http_server | 1.3.20 | cpe:2.3:a:apache:http_server:1.3.20:*:*:*:*:*:*:* |
| apache | http_server | 1.3.22 | cpe:2.3:a:apache:http_server:1.3.22:*:*:*:*:*:*:* |
| apache | http_server | 1.3.23 | cpe:2.3:a:apache:http_server:1.3.23:*:*:*:*:*:*:* |
| apache | http_server | 1.3.24 | cpe:2.3:a:apache:http_server:1.3.24:*:*:*:*:*:*:* |
| apache | http_server | 1.3.25 | cpe:2.3:a:apache:http_server:1.3.25:*:*:*:*:*:*:* |
| apache | http_server | 1.3.26 | cpe:2.3:a:apache:http_server:1.3.26:*:*:*:*:*:*:* |
| apache | http_server | 1.3.27 | cpe:2.3:a:apache:http_server:1.3.27:*:*:*:*:*:*:* |
| apache | http_server | 1.3.28 | cpe:2.3:a:apache:http_server:1.3.28:*:*:*:*:*:*:* |
| apache | http_server | 1.3.29 | cpe:2.3:a:apache:http_server:1.3.29:*:*:*:*:*:*:* |
| apache | http_server | 1.3.30 | cpe:2.3:a:apache:http_server:1.3.30:*:*:*:*:*:*:* |
| apache | http_server | 1.3.31 | cpe:2.3:a:apache:http_server:1.3.31:*:*:*:*:*:*:* |
| apache | http_server | 1.3.32 | cpe:2.3:a:apache:http_server:1.3.32:*:*:*:*:*:*:* |
| apache | http_server | 1.3.33 | cpe:2.3:a:apache:http_server:1.3.33:*:*:*:*:*:*:* |
| apache | http_server | 1.3.34 | cpe:2.3:a:apache:http_server:1.3.34:*:*:*:*:*:*:* |
| apache | http_server | 1.3.35 | cpe:2.3:a:apache:http_server:1.3.35:*:*:*:*:*:*:* |
| apache | http_server | 1.3.36 | cpe:2.3:a:apache:http_server:1.3.36:*:*:*:*:*:*:* |
| apache | http_server | 1.3.37 | cpe:2.3:a:apache:http_server:1.3.37:*:*:*:*:*:*:* |
| apache | http_server | 1.3.38 | cpe:2.3:a:apache:http_server:1.3.38:*:*:*:*:*:*:* |
| apache | http_server | 1.3.39 | cpe:2.3:a:apache:http_server:1.3.39:*:*:*:*:*:*:* |
| apache | http_server | 1.3.41 | cpe:2.3:a:apache:http_server:1.3.41:*:*:*:*:*:*:* |
| apache | http_server | 1.3.42 | cpe:2.3:a:apache:http_server:1.3.42:*:*:*:*:*:*:* |
| apache | http_server | 1.3.65 | cpe:2.3:a:apache:http_server:1.3.65:*:*:*:*:*:*:* |
| apache | http_server | 1.3.68 | cpe:2.3:a:apache:http_server:1.3.68:*:*:*:*:*:*:* |
| apache | http_server | 2.0 | cpe:2.3:a:apache:http_server:2.0:*:*:*:*:*:*:* |
| apache | http_server | 2.0.9 | cpe:2.3:a:apache:http_server:2.0.9:*:*:*:*:*:*:* |
| apache | http_server | 2.0.28 | cpe:2.3:a:apache:http_server:2.0.28:*:*:*:*:*:*:* |
| apache | http_server | 2.0.28 | cpe:2.3:a:apache:http_server:2.0.28:beta:*:*:*:*:*:* |
| apache | http_server | 2.0.32 | cpe:2.3:a:apache:http_server:2.0.32:*:*:*:*:*:*:* |
| apache | http_server | 2.0.32 | cpe:2.3:a:apache:http_server:2.0.32:beta:*:*:*:*:*:* |
| apache | http_server | 2.0.34 | cpe:2.3:a:apache:http_server:2.0.34:beta:*:*:*:*:*:* |
| apache | http_server | 2.0.35 | cpe:2.3:a:apache:http_server:2.0.35:*:*:*:*:*:*:* |
| apache | http_server | 2.0.36 | cpe:2.3:a:apache:http_server:2.0.36:*:*:*:*:*:*:* |
| apache | http_server | 2.0.37 | cpe:2.3:a:apache:http_server:2.0.37:*:*:*:*:*:*:* |
| apache | http_server | 2.0.38 | cpe:2.3:a:apache:http_server:2.0.38:*:*:*:*:*:*:* |
| apache | http_server | 2.0.39 | cpe:2.3:a:apache:http_server:2.0.39:*:*:*:*:*:*:* |
| apache | http_server | 2.0.40 | cpe:2.3:a:apache:http_server:2.0.40:*:*:*:*:*:*:* |
| apache | http_server | 2.0.41 | cpe:2.3:a:apache:http_server:2.0.41:*:*:*:*:*:*:* |
| apache | http_server | 2.0.42 | cpe:2.3:a:apache:http_server:2.0.42:*:*:*:*:*:*:* |
| apache | http_server | 2.0.43 | cpe:2.3:a:apache:http_server:2.0.43:*:*:*:*:*:*:* |
| apache | http_server | 2.0.44 | cpe:2.3:a:apache:http_server:2.0.44:*:*:*:*:*:*:* |
| apache | http_server | 2.0.45 | cpe:2.3:a:apache:http_server:2.0.45:*:*:*:*:*:*:* |
| apache | http_server | 2.0.46 | cpe:2.3:a:apache:http_server:2.0.46:*:*:*:*:*:*:* |
| apache | http_server | 2.0.47 | cpe:2.3:a:apache:http_server:2.0.47:*:*:*:*:*:*:* |
| apache | http_server | 2.0.48 | cpe:2.3:a:apache:http_server:2.0.48:*:*:*:*:*:*:* |
| apache | http_server | 2.0.49 | cpe:2.3:a:apache:http_server:2.0.49:*:*:*:*:*:*:* |
| apache | http_server | 2.0.50 | cpe:2.3:a:apache:http_server:2.0.50:*:*:*:*:*:*:* |
| apache | http_server | 2.0.51 | cpe:2.3:a:apache:http_server:2.0.51:*:*:*:*:*:*:* |
| apache | http_server | 2.0.52 | cpe:2.3:a:apache:http_server:2.0.52:*:*:*:*:*:*:* |
| apache | http_server | 2.0.53 | cpe:2.3:a:apache:http_server:2.0.53:*:*:*:*:*:*:* |
| apache | http_server | 2.0.54 | cpe:2.3:a:apache:http_server:2.0.54:*:*:*:*:*:*:* |
| apache | http_server | 2.0.55 | cpe:2.3:a:apache:http_server:2.0.55:*:*:*:*:*:*:* |
| apache | http_server | 2.0.56 | cpe:2.3:a:apache:http_server:2.0.56:*:*:*:*:*:*:* |
| apache | http_server | 2.0.57 | cpe:2.3:a:apache:http_server:2.0.57:*:*:*:*:*:*:* |
| apache | http_server | 2.0.58 | cpe:2.3:a:apache:http_server:2.0.58:*:*:*:*:*:*:* |
| apache | http_server | 2.0.59 | cpe:2.3:a:apache:http_server:2.0.59:*:*:*:*:*:*:* |
| apache | http_server | 2.0.60 | cpe:2.3:a:apache:http_server:2.0.60:*:*:*:*:*:*:* |
| apache | http_server | 2.0.61 | cpe:2.3:a:apache:http_server:2.0.61:*:*:*:*:*:*:* |
| apache | http_server | 2.0.63 | cpe:2.3:a:apache:http_server:2.0.63:*:*:*:*:*:*:* |