diff options
Diffstat (limited to 'ecomp-portal-BE-os/src/main/java/org')
| -rw-r--r-- | ecomp-portal-BE-os/src/main/java/org/onap/portalapp/filter/SecurityXssFilter.java | 179 | ||||
| -rw-r--r-- | ecomp-portal-BE-os/src/main/java/org/onap/portalapp/filter/SecurityXssValidator.java | 213 |
2 files changed, 392 insertions, 0 deletions
diff --git a/ecomp-portal-BE-os/src/main/java/org/onap/portalapp/filter/SecurityXssFilter.java b/ecomp-portal-BE-os/src/main/java/org/onap/portalapp/filter/SecurityXssFilter.java new file mode 100644 index 00000000..4bb48a3a --- /dev/null +++ b/ecomp-portal-BE-os/src/main/java/org/onap/portalapp/filter/SecurityXssFilter.java @@ -0,0 +1,179 @@ + +/*- + * ============LICENSE_START========================================== + * ONAP Portal + * =================================================================== + * Copyright © 2017 AT&T Intellectual Property. All rights reserved. + * =================================================================== + * + * Unless otherwise specified, all software contained herein is licensed + * under the Apache License, Version 2.0 (the "License"); + * you may not use this software except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * Unless otherwise specified, all documentation contained herein is licensed + * under the Creative Commons License, Attribution 4.0 Intl. (the "License"); + * you may not use this documentation except in compliance with the License. + * You may obtain a copy of the License at + * + * https://creativecommons.org/licenses/by/4.0/ + * + * Unless required by applicable law or agreed to in writing, documentation + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * ============LICENSE_END============================================ + * + * + */ +package org.onap.portalapp.filter; + +import java.io.BufferedReader; +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.IOException; +import java.io.InputStreamReader; +import java.nio.charset.StandardCharsets; +import java.util.Enumeration; + +import javax.servlet.FilterChain; +import javax.servlet.ReadListener; +import javax.servlet.ServletException; +import javax.servlet.ServletInputStream; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletRequestWrapper; +import javax.servlet.http.HttpServletResponse; + +import org.apache.commons.io.IOUtils; +import org.apache.commons.lang.StringUtils; +import org.apache.http.HttpStatus; +import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate; +import org.springframework.web.filter.OncePerRequestFilter; + +public class SecurityXssFilter extends OncePerRequestFilter { + + private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(SecurityXssFilter.class); + + private static final String APPLICATION_JSON = "application/json"; + + private static final String ERROR_BAD_REQUEST = "{\"error\":\"BAD_REQUEST\"}"; + + private SecurityXssValidator validator = SecurityXssValidator.getInstance(); + + public class RequestWrapper extends HttpServletRequestWrapper { + + private ByteArrayOutputStream cachedBytes; + + public RequestWrapper(HttpServletRequest request) { + super(request); + } + + @Override + public ServletInputStream getInputStream() throws IOException { + if (cachedBytes == null) + cacheInputStream(); + + return new CachedServletInputStream(); + } + + @Override + public BufferedReader getReader() throws IOException { + return new BufferedReader(new InputStreamReader(getInputStream())); + } + + private void cacheInputStream() throws IOException { + cachedBytes = new ByteArrayOutputStream(); + IOUtils.copy(super.getInputStream(), cachedBytes); + } + + public class CachedServletInputStream extends ServletInputStream { + private ByteArrayInputStream input; + + public CachedServletInputStream() { + input = new ByteArrayInputStream(cachedBytes.toByteArray()); + } + + @Override + public int read() throws IOException { + return input.read(); + } + + @Override + public boolean isFinished() { + return false; + } + + @Override + public boolean isReady() { + return false; + } + + @Override + public void setReadListener(ReadListener readListener) { + + } + + } + } + + @Override + protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) + throws ServletException, IOException { + StringBuilder requestURL = new StringBuilder(request.getRequestURL().toString()); + String queryString = request.getQueryString(); + String requestUrl = ""; + if (queryString == null) { + requestUrl = requestURL.toString(); + } else { + requestUrl = requestURL.append('?').append(queryString).toString(); + } + validateRequest(requestUrl, response); + StringBuilder headerValues = new StringBuilder(); + Enumeration<String> headerNames = request.getHeaderNames(); + while (headerNames.hasMoreElements()) { + String key = (String) headerNames.nextElement(); + String value = request.getHeader(key); + headerValues.append(key + ":" + value + ";"); + } + validateRequest(headerValues.toString(), response); + if (validateRequestType(request)) { + request = new RequestWrapper(request); + String requestData = IOUtils.toString(request.getInputStream(), StandardCharsets.UTF_8.toString()); + validateRequest(requestData, response); + filterChain.doFilter(request, response); + + } else { + filterChain.doFilter(request, response); + } + } + + private boolean validateRequestType(HttpServletRequest request) { + return (request.getMethod().equalsIgnoreCase("POST") || request.getMethod().equalsIgnoreCase("PUT") + || request.getMethod().equalsIgnoreCase("DELETE")); + } + + private void validateRequest(String text, HttpServletResponse response) throws IOException { + try { + if (StringUtils.isNotBlank(text) && validator.denyXSS(text)) { + response.setContentType(APPLICATION_JSON); + response.setStatus(HttpStatus.SC_BAD_REQUEST); + response.getWriter().write(ERROR_BAD_REQUEST); + throw new SecurityException(ERROR_BAD_REQUEST); + } + } catch (Exception e) { + logger.error(EELFLoggerDelegate.errorLogger, "doFilterInternal() failed due to BAD_REQUEST", e); + response.getWriter().close(); + return; + } + } +}
\ No newline at end of file diff --git a/ecomp-portal-BE-os/src/main/java/org/onap/portalapp/filter/SecurityXssValidator.java b/ecomp-portal-BE-os/src/main/java/org/onap/portalapp/filter/SecurityXssValidator.java new file mode 100644 index 00000000..3adc313a --- /dev/null +++ b/ecomp-portal-BE-os/src/main/java/org/onap/portalapp/filter/SecurityXssValidator.java @@ -0,0 +1,213 @@ +/*- + * ============LICENSE_START========================================== + * ONAP Portal + * =================================================================== + * Copyright © 2017 AT&T Intellectual Property. All rights reserved. + * =================================================================== + * + * Unless otherwise specified, all software contained herein is licensed + * under the Apache License, Version 2.0 (the "License"); + * you may not use this software except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * Unless otherwise specified, all documentation contained herein is licensed + * under the Creative Commons License, Attribution 4.0 Intl. (the "License"); + * you may not use this documentation except in compliance with the License. + * You may obtain a copy of the License at + * + * https://creativecommons.org/licenses/by/4.0/ + * + * Unless required by applicable law or agreed to in writing, documentation + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * ============LICENSE_END============================================ + * + * + */ +package org.onap.portalapp.filter; + +import java.util.ArrayList; +import java.util.List; +import java.util.concurrent.locks.Lock; +import java.util.concurrent.locks.ReentrantLock; +import java.util.regex.Pattern; + +import org.apache.commons.lang.NotImplementedException; +import org.apache.commons.lang.StringUtils; +import org.apache.commons.lang3.StringEscapeUtils; +import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate; +import org.onap.portalsdk.core.util.SystemProperties; +import org.owasp.esapi.ESAPI; +import org.owasp.esapi.codecs.Codec; +import org.owasp.esapi.codecs.MySQLCodec; +import org.owasp.esapi.codecs.OracleCodec; +import org.owasp.esapi.codecs.MySQLCodec.Mode; + +public class SecurityXssValidator { + + private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(SecurityXssValidator.class); + + private static final String MYSQL_DB = "mysql"; + private static final String ORACLE_DB = "oracle"; + private static final String MARIA_DB = "mariadb"; + private static final int FLAGS = Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL; + static SecurityXssValidator validator = null; + private static Codec instance; + private static final Lock lock = new ReentrantLock(); + + public static SecurityXssValidator getInstance() { + + if (validator == null) { + lock.lock(); + try { + if (validator == null) + validator = new SecurityXssValidator(); + } finally { + lock.unlock(); + } + } + + return validator; + } + + private SecurityXssValidator() { + // Avoid anything between script tags + XSS_INPUT_PATTERNS.add(Pattern.compile("<script>(.*?)</script>", FLAGS)); + + // avoid iframes + XSS_INPUT_PATTERNS.add(Pattern.compile("<iframe(.*?)>(.*?)</iframe>", FLAGS)); + + // Avoid anything in a src='...' type of expression + XSS_INPUT_PATTERNS.add(Pattern.compile("src[\r\n]*=[\r\n]*\\\'(.*?)\\\'", FLAGS)); + + XSS_INPUT_PATTERNS.add(Pattern.compile("src[\r\n]*=[\r\n]*\\\"(.*?)\\\"", FLAGS)); + + XSS_INPUT_PATTERNS.add(Pattern.compile("src[\r\n]*=[\r\n]*([^>]+)", FLAGS)); + + // Remove any lonesome </script> tag + XSS_INPUT_PATTERNS.add(Pattern.compile("</script>", FLAGS)); + + XSS_INPUT_PATTERNS.add(Pattern.compile(".*(<script>|</script>).*", FLAGS)); + + XSS_INPUT_PATTERNS.add(Pattern.compile(".*(<iframe>|</iframe>).*", FLAGS)); + + // Remove any lonesome <script ...> tag + XSS_INPUT_PATTERNS.add(Pattern.compile("<script(.*?)>", FLAGS)); + + // Avoid eval(...) expressions + XSS_INPUT_PATTERNS.add(Pattern.compile("eval\\((.*?)\\)", FLAGS)); + + // Avoid expression(...) expressions + XSS_INPUT_PATTERNS.add(Pattern.compile("expression\\((.*?)\\)", FLAGS)); + + // Avoid javascript:... expressions + XSS_INPUT_PATTERNS.add(Pattern.compile(".*(javascript:|vbscript:).*", FLAGS)); + + // Avoid onload= expressions + XSS_INPUT_PATTERNS.add(Pattern.compile(".*(onload(.*?)=).*", FLAGS)); + } + + private List<Pattern> XSS_INPUT_PATTERNS = new ArrayList<Pattern>(); + + /** + * * This method takes a string and strips out any potential script injections. + * + * @param value + * @return String - the new "sanitized" string. + */ + public String stripXSS(String value) { + + try { + + if (StringUtils.isNotBlank(value)) { + + value = StringEscapeUtils.escapeHtml4(value); + + value = ESAPI.encoder().canonicalize(value); + + // Avoid null characters + value = value.replaceAll("\0", ""); + + for (Pattern xssInputPattern : XSS_INPUT_PATTERNS) { + value = xssInputPattern.matcher(value).replaceAll(""); + } + } + + } catch (Exception e) { + logger.error(EELFLoggerDelegate.errorLogger, "stripXSS() failed", e); + } + + return value; + } + + public Boolean denyXSS(String value) { + Boolean flag = Boolean.FALSE; + try { + if (StringUtils.isNotBlank(value)) { + if (value.contains("×eclgn")) + { + logger.info(EELFLoggerDelegate.applicationLogger, "denyXSS() replacing ×eclgn with empty string for request value : " + value); + value=value.replaceAll("×eclgn", ""); + } + value = ESAPI.encoder().canonicalize(value); + for (Pattern xssInputPattern : XSS_INPUT_PATTERNS) { + if (xssInputPattern.matcher(value).matches()) { + flag = Boolean.TRUE; + break; + } + + } + } + + } catch (Exception e) { + logger.error(EELFLoggerDelegate.errorLogger, "denyXSS() failed for request with value : " + value, e); + } + + return flag; + } + + public Codec getCodec() { + try { + if (null == instance) { + if (StringUtils.containsIgnoreCase(SystemProperties.getProperty(SystemProperties.DB_DRIVER), MYSQL_DB) + || StringUtils.containsIgnoreCase(SystemProperties.getProperty(SystemProperties.DB_DRIVER), + MARIA_DB)) { + instance = new MySQLCodec(Mode.STANDARD); + + } else if (StringUtils.containsIgnoreCase(SystemProperties.getProperty(SystemProperties.DB_DRIVER), + ORACLE_DB)) { + instance = new OracleCodec(); + } else { + throw new NotImplementedException("Handling for data base \"" + + SystemProperties.getProperty(SystemProperties.DB_DRIVER) + "\" not yet implemented."); + } + } + + } catch (Exception ex) { + logger.error(EELFLoggerDelegate.errorLogger, "getCodec() failed", ex); + } + return instance; + + } + + public List<Pattern> getXSS_INPUT_PATTERNS() { + return XSS_INPUT_PATTERNS; + } + + public void setXSS_INPUT_PATTERNS(List<Pattern> xSS_INPUT_PATTERNS) { + XSS_INPUT_PATTERNS = xSS_INPUT_PATTERNS; + } + + +}
\ No newline at end of file |