打开VAS -服务暂时关闭(证书过期)

Question

所以我的证书在我的Open VAS安装中过期了。正因为如此，当我尝试运行扫描时，我得到了以下错误。

操作:开始任务状态代码: 503状态消息:服务暂时关闭

我已尝试重新创建证书：

me@ovas:~$ sudo /usr/sbin/openvas-mkcert -q -f
[sudo] password for me:


me@ovas:~$ sudo /usr/bin/openvas-mkcert-client -n -i
Generating RSA private key, 4096 bit long modulus
........................++
..................................................................................++
e is 65537 (0x10001)
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [DE]:State or Province Name (full name) [Some-State]:Locality Name (eg, city) []:Organization Name (eg, company) [Internet Widgits Pty Ltd]:Organizational Unit Name (eg, section) []:Common Name (eg, your name or your server's hostname) []:Email Address []:Using configuration from /tmp/openvas-mkcert-client.28853/stdC.cnf
Check that the request matches the signature
Signature ok
The Subject's Distinguished Name is as follows
countryName           :PRINTABLE:'DE'
localityName          :ASN.1 12:'Berlin'
commonName            :ASN.1 12:'om'
Certificate is to be certified until Dec  5 12:38:09 2017 GMT (365 days)

Write out database with 1 new entries
Data Base Updated
me@ovas:~$

然后重启..。

然后web界面的一个被正确地切换出来了，但是扫描仪的那个似乎不是？

这是日志中的内容：

lib服务器:警告:2016-12-05 12h41.23 UTC:1533:无法与对等设备握手: TLS连接未正确终止。事件task:MESSAGE:2016-12-05 12h41.23 UTC:1533:管理员无法启动target.me (3aca3163-3de2-4519-92af-f649f6bedd7c)的任务扫描

选中打开VAS脚本输出：

openvas-check-setup 2.3.7
  Test completeness and readiness of OpenVAS-8
  (add '--v6' or '--v7' or '--v9'
   if you want to check for another OpenVAS version)

  Please report us any non-detected problems and
  help us to improve this check routine:
  http://lists.wald.intevation.org/mailman/listinfo/openvas-discuss

  Send us the log-file (/tmp/openvas-check-setup.log) to help analyze the problem.

  Use the parameter --server to skip checks for client tools
  like GSD and OpenVAS-CLI.

Step 1: Checking OpenVAS Scanner ...
        OK: OpenVAS Scanner is present in version 5.0.7.
        OK: OpenVAS Scanner CA Certificate is present as /var/lib/openvas/CA/cacert.pem.
        OK: redis-server is present in version v=3.0.6.
        OK: scanner (kb_location setting) is configured properly using the redis-server socket: /var/run/redis/redis.sock
        OK: redis-server is running and listening on socket: /var/run/redis/redis.sock.
        OK: redis-server configuration is OK and redis-server is running.
        OK: NVT collection in /var/lib/openvas/plugins contains 50525 NVTs.
        WARNING: Signature checking of NVTs is not enabled in OpenVAS Scanner.
        SUGGEST: Enable signature checking (see http://www.openvas.org/trusted-nvts.html).
        OK: The NVT cache in /var/cache/openvas contains 50548 files for 50525 NVTs.
Step 2: Checking OpenVAS Manager ...
        OK: OpenVAS Manager is present in version 6.0.9.
        OK: OpenVAS Manager client certificate is present as /var/lib/openvas/CA/clientcert.pem.
        OK: OpenVAS Manager database found in /var/lib/openvas/mgr/tasks.db.
        OK: Access rights for the OpenVAS Manager database are correct.
        OK: sqlite3 found, extended checks of the OpenVAS Manager installation enabled.
        OK: OpenVAS Manager database is at revision 146.
        OK: OpenVAS Manager expects database at revision 146.
        OK: Database schema is up to date.
        OK: OpenVAS Manager database contains information about 49328 NVTs.
        OK: At least one user exists.
        OK: OpenVAS SCAP database found in /var/lib/openvas/scap-data/scap.db.
        OK: OpenVAS CERT database found in /var/lib/openvas/cert-data/cert.db.
        OK: xsltproc found.
Step 3: Checking user configuration ...
        WARNING: Your password policy is empty.
        SUGGEST: Edit the /etc/openvas/pwpolicy.conf file to set a password policy.
Step 4: Checking Greenbone Security Assistant (GSA) ...
        OK: Greenbone Security Assistant is present in version 6.0.11.
Step 5: Checking OpenVAS CLI ...
        OK: OpenVAS CLI version 1.4.4.
Step 6: Checking Greenbone Security Desktop (GSD) ...
        SKIP: Skipping check for Greenbone Security Desktop.
Step 7: Checking if OpenVAS services are up and running ...
        OK: netstat found, extended checks of the OpenVAS services enabled.
        OK: OpenVAS Scanner is running and listening on all interfaces.
        OK: OpenVAS Scanner is listening on port 9391, which is the default port.
        OK: OpenVAS Manager is running and listening on all interfaces.
        OK: OpenVAS Manager is listening on port 9390, which is the default port.
        OK: Greenbone Security Assistant is running and listening on all interfaces.
        OK: Greenbone Security Assistant is listening on port 443, which is the default port.
Step 8: Checking nmap installation ...
        WARNING: Your version of nmap is not fully supported: 7.01
        SUGGEST: You should install nmap 5.51 if you plan to use the nmap NSE NVTs.
Step 10: Checking presence of optional tools ...
        OK: pdflatex found.
        WARNING: PDF generation failed, most likely due to missing LaTeX packages. The PDF report format will not work.
        SUGGEST: Install required LaTeX packages.
        OK: ssh-keygen found, LSC credential generation for GNU/Linux targets is likely to work.
        OK: rpm found, LSC credential package generation for RPM based targets is likely to work.
        OK: alien found, LSC credential package generation for DEB based targets is likely to work.
        OK: nsis found, LSC credential package generation for Microsoft Windows targets is likely to work.

It seems like your OpenVAS-8 installation is OK.

If you think it is not OK, please report your observation
and help us to improve this check routine:
http://lists.wald.intevation.org/mailman/listinfo/openvas-discuss
Please attach the log-file (/tmp/openvas-check-setup.log) to help us analyze the problem.

Answer 1

这个答案对于OP来说可能有点晚了，但以防未来的Googlers用户最终来到这里，以下是对我有效的方法：

我还得出结论，当我的OpenVAS扫描突然停止运行时，过期的证书是问题所在。使用openvas-check-setup命令告诉我一切正常，但当我尝试手动运行扫描时，我会得到相同的503服务不可用消息。查看日志(location for me: /var/log/openvas/openvasmd.log)给了我一些线索，包括：

警告:2017-05-16 19h04.51utc:3687: Failed to gnutls_bye:推流功能错误。警告:2017-05-16 19h04.52utc:3686: openvas_server_verify:证书不可信警告:2017-05-16 19h04.52utc:3686: openvas_server_verify:证书已过期

我从解决gnutls_bye消息开始，因为错误这个词往往比警告引起更多的注意，但最终证书才是问题所在。

我使用了OP的mkcert命令的一个变体来生成新证书，但我认为s/he缺少的一步是使用这些新证书更新扫描仪配置。

因此，我导航到更靠近cert文件位置(cd /var/lib/openvas/)并运行以下命令：

openvasmd --modify-scanner <UUID> --scanner-ca-pub CA/cacert.pem --scanner-key-pub CA/clientcert.pem --scanner-key-priv private/CA/clientkey.pem 

您需要替换为正在修改的扫描仪的实际UUID。要获取扫描仪列表，请执行以下操作：

openvasmd --get-scanners

作为最后的检查，您可以使用verify命令：

openvasmd --verify-scanner <UUID>

当它坏了的时候，我得到了一个非常无用的响应

无法验证扫描仪。

但是，一旦您成功地更新了证书并将其与您的扫描仪相关联(并且您可能需要重新启动相关的服务，或者像我一样使用惰性/核心方法并重新启动服务器)，那么验证命令应该返回类似以下内容的内容

扫描器版本: OTP/2.0.

或者您正在运行的任何类型/版本。

如果你在这里搜索“更新扫描仪证书”，那么修改扫描仪的步骤就隐藏在OpenVAS文档中了：http://www.openvas.org/src-doc/openvas-manager/index.html

希望这对某些人有帮助！