问题背景
1.市场反馈某型号路由器产品进行安全扫描时存在漏洞CVE-2014-3566,直接原因是openssl版本过低。
2.需要在本地测试环境验证该漏洞是否还存在?openssl版本过低是否是直接原因?该openssl版本是否已经包含TLS_FALLBACK_SCSV的支持?
解决思路
1. 查询openssl当前的版本和支持的加解密信息
1 2 | openssl version openssl cipher -v |
2. 搜索了下相关资料,发现github有一个开源工具testssl,地址https://github.com/drwetter/testssl.sh ,详细介绍可以直接去看一下。就直接拿来用了
1 2 3 4 | git clone https://github.com/drwetter/testssl.sh.git #路由器lan 地址为192.168.0.1 #针对POODLE SSLv3(CVE-2014-3566)进行测试 ./testssl.sh -O 192.168.0.1 |
3. 测试结果
4. testssl.sh的其他配置项说明
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | userid@somehost:~ % testssl.sh testssl.sh <options> -h, --help what you're looking at -b, --banner displays banner + version of testssl.sh -v, --version same as previous -V, --local pretty print all local ciphers -V, --local <pattern> which local ciphers with <pattern> are available? (if pattern not a number: word match) testssl.sh <options> URI ("testssl.sh URI" does everything except -E) -e, --each-cipher checks each local cipher remotely -E, --cipher-per-proto checks those per protocol -f, --ciphers checks common cipher suites -p, --protocols checks TLS/SSL protocols (including SPDY/HTTP2) -y, --spdy, --npn checks for SPDY/NPN -Y, --http2, --alpn checks for HTTP2/ALPN -S, --server-defaults displays the server's default picks and certificate info -P, --server-preference displays the server's picks: protocol+cipher -x, --single-cipher <pattern> tests matched <pattern> of ciphers (if <pattern> not a number: word match) -c, --client-simulation test client simulations, see which client negotiates with cipher and protocol -H, --header, --headers tests HSTS, HPKP, server/app banner, security headers, cookie, reverse proxy, IPv4 address -U, --vulnerable tests all vulnerabilities -B, --heartbleed tests for heartbleed vulnerability -I, --ccs, --ccs-injection tests for CCS injection vulnerability -R, --renegotiation tests for renegotiation vulnerabilities -C, --compression, --crime tests for CRIME vulnerability -T, --breach tests for BREACH vulnerability -O, --poodle tests for POODLE (SSL) vulnerability -Z, --tls-fallback checks TLS_FALLBACK_SCSV mitigation -F, --freak tests for FREAK vulnerability -A, --beast tests for BEAST vulnerability -J, --logjam tests for LOGJAM vulnerability -D, --drown tests for DROWN vulnerability -s, --pfs, --fs, --nsa checks (perfect) forward secrecy settings -4, --rc4, --appelbaum which RC4 ciphers are being offered? special invocations: -t, --starttls <protocol> does a default run against a STARTTLS enabled <protocol> --xmpphost <to_domain> for STARTTLS enabled XMPP it supplies the XML stream to-'' domain -- sometimes needed --mx <domain/host> tests MX records from high to low priority (STARTTLS, port 25) --ip <ip> a) tests the supplied <ip> v4 or v6 address instead of resolving host(s) in URI b) arg "one" means: just test the first DNS returns (useful for multiple IPs) --file <fname> mass testing option: Reads command lines from <fname>, one line per instance. Comments via # allowed, EOF signals end of <fname>. Implicitly turns on "--warnings batch" partly mandatory parameters: URI host|host:port|URL|URL:port (port 443 is assumed unless otherwise specified) pattern an ignore case word pattern of cipher hexcode or any other string in the name, kx or bits protocol is one of the STARTTLS protocols ftp,smtp,pop3,imap,xmpp,telnet,ldap (for the latter two you need e.g. the supplied openssl) tuning options (can also be preset via environment variables): --bugs enables the "-bugs" option of s_client, needed e.g. for some buggy F5s --assume-http if protocol check fails it assumes HTTP protocol and enforces HTTP checks --ssl-native fallback to checks with OpenSSL where sockets are normally used --openssl <PATH> use this openssl binary (default: look in $PATH, $RUN_DIR of testssl.sh) --proxy <host>:<port> connect via the specified HTTP proxy -6 use also IPv6. Works only with supporting OpenSSL version and IPv6 connectivity --sneaky leave less traces in target logs: user agent, referer output options (can also be preset via environment variables): --warnings <batch|off|false> "batch" doesn't wait for keypress, "off" or "false" skips connection warning --quiet don't output the banner. By doing this you acknowledge usage terms normally appearing in the banner --wide wide output for tests like RC4, BEAST. PFS also with hexcode, kx, strength, RFC name --show-each for wide outputs: display all ciphers tested -- not only succeeded ones --mapping <no-rfc> don't display the RFC Cipher Suite Name --color <0|1|2> 0: no escape or other codes, 1: b/w escape codes, 2: color (default) --colorblind swap green and blue in the output --debug <0-6> 1: screen output normal but keeps debug output in /tmp/. 2-6: see "grep -A 5 '^DEBUG=' testssl.sh" file output options (can also be preset via environment variables): --log, --logging logs stdout to <NODE-YYYYMMDD-HHMM.log> in current working directory --logfile <logfile> logs stdout to <file/NODE-YYYYMMDD-HHMM.log> if file is a dir or to specified log file --json additional output of findings to JSON file <NODE-YYYYMMDD-HHMM.json> in cwd --jsonfile <jsonfile> additional output to JSON and output JSON to the specified file --csv additional output of findings to CSV file <NODE-YYYYMMDD-HHMM.csv> in cwd --csvfile <csvfile> set output to CSV and output CSV to the specified file --append if <csvfile> or <jsonfile> exists rather append then overwrite All options requiring a value can also be called with '=' e.g. testssl.sh -t=smtp --wide --openssl=/usr/bin/openssl <URI>. <URI> is always the last parameter. Need HTML output? Just pipe through "aha" (ANSI HTML Adapter: github.com/theZiz/aha) like "testssl.sh <options> <URI> | aha >output.html" userid@somehost:~ % |