Vulnerability Scan Result

| Title: | Jobs.cz – skvělá šance na skvělý job – nabídka práce, volná pracovní místa, brigády i vzdělávání a rozvoj |
| Description: | Jobs.cz nabízí spojení s elitou českých i zahraničních zaměstnavatelů. Vyberte si z aktuální nabídky práce a brigád v ČR i v zahraničí. Načerpejte informace z rozsáhlé poradny, vyberte si vysokou školu, MBA studium, odbornou konferenci, kurz nebo školení. |
| ip_address | 18.172.112.49 |
| country | US |
| network_name | Amazon.com, Inc. |
| asn | AS16509 |
| ip_address | 18.172.112.8 |
| country | US |
| network_name | Amazon.com, Inc. |
| asn | AS16509 |
| ip_address | 18.172.112.21 |
| country | US |
| network_name | Amazon.com, Inc. |
| asn | AS16509 |
| ip_address | 18.172.112.110 |
| country | US |
| network_name | Amazon.com, Inc. |
| asn | AS16509 |
80/tcp | http | Amazon CloudFront httpd - |
443/tcp | https | - - |
| Software / Version | Category |
|---|---|
| Amazon Web Services | PaaS |
| AWS Certificate Manager | SSL/TLS certificate authorities |
| Amazon CloudFront | CDN |
| Microsoft Clarity | Analytics |
| Emotion | JavaScript frameworks, Development |
| Adobe Fonts | Font scripts |
| Google Font API | Font scripts |
| ZURB Foundation | UI frameworks |
| Google Analytics | Analytics |
| Apache HTTP Server | Web servers |
| MySQL | Databases |
| Open Graph | Miscellaneous |
| PHP | Programming languages |
| DoubleClick Floodlight | Advertising |
| Typekit | Font scripts |
| PWA | Miscellaneous |
| WordPress | CMS, Blogs |
| Cloudimage | CDN, Digital asset management |
| Google Tag Manager | Tag managers |
| HSTS | Security |
Web Application Vulnerabilities
Evidence
| URL | Cookie Name | Evidence |
|---|---|---|
| https://www.jobs.cz/ | APJOBS72ID | Set-Cookie: APJOBS72ID=2c249641d0b56b80 |
Vulnerability description
We found that a cookie has been set without the Secure flag, which means the browser will send it over an unencrypted channel (plain HTTP) if such a request is made. The root cause for this usually revolves around misconfigurations in the code or server settings.
Risk description
The risk exists that an attacker will intercept the clear-text communication between the browser and the server and he will steal the cookie of the user. If this is a session cookie, the attacker could gain unauthorized access to the victim's web session.
Recommendation
Whenever a cookie contains sensitive information or is a session token, then it should always be passed using an encrypted channel. Ensure that the secure flag is set for cookies containing such sensitive information.
Classification
| CWE | CWE-614 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
Vulnerability description
We found the robots.txt on the target server. This file instructs web crawlers what URLs and endpoints of the web application they can visit and crawl. Website administrators often misuse this file while attempting to hide some web pages from the users.
Risk description
There is no particular security risk in having a robots.txt file. However, it's important to note that adding endpoints in it should not be considered a security measure, as this file can be directly accessed and read by anyone.
Recommendation
We recommend you to manually review the entries from robots.txt and remove the ones which lead to sensitive locations in the website (ex. administration panels, configuration files, etc).
Evidence
| URL | Evidence |
|---|---|
| https://www.jobs.cz/ | Response headers do not include the X-Content-Type-Options HTTP security header |
Vulnerability description
We noticed that the target application's server responses lack the X-Content-Type-Options header. This header is particularly important for preventing Internet Explorer from reinterpreting the content of a web page (MIME-sniffing) and thus overriding the value of the Content-Type header.
Risk description
The risk is that lack of this header could make possible attacks such as Cross-Site Scripting or phishing in Internet Explorer browsers.
Recommendation
We recommend setting the X-Content-Type-Options header such as `X-Content-Type-Options: nosniff`.
Classification
| CWE | CWE-693 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| URL | Evidence |
|---|---|
| https://www.jobs.cz/ | Response headers include the HTTP Content-Security-Policy security header with the following security issues: |
Vulnerability description
We noticed that the Content-Security-Policy (CSP) header configured for the web application includes unsafe directives. The CSP header activates a protection mechanism implemented in web browsers which prevents exploitation of Cross-Site Scripting vulnerabilities (XSS) by restricting the sources from which content can be loaded or executed.
Risk description
For example, if the unsafe-inline directive is present in the CSP header, the execution of inline scripts and event handlers is allowed. This can be exploited by an attacker to execute arbitrary JavaScript code in the context of the vulnerable application.
Recommendation
Remove the unsafe values from the directives, adopt nonces or hashes for safer inclusion of inline scripts if they are needed, and explicitly define the sources from which scripts, styles, images or other resources can be loaded.
Classification
| CWE | CWE-1021 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| Software / Version | Category |
|---|---|
| Amazon Web Services | PaaS |
| AWS Certificate Manager | SSL/TLS certificate authorities |
| Amazon CloudFront | CDN |
| Microsoft Clarity | Analytics |
| Emotion | JavaScript frameworks, Development |
| Adobe Fonts | Font scripts |
| Google Font API | Font scripts |
| ZURB Foundation | UI frameworks |
| Google Analytics | Analytics |
| Apache HTTP Server | Web servers |
| MySQL | Databases |
| Open Graph | Miscellaneous |
| PHP | Programming languages |
| DoubleClick Floodlight | Advertising |
| Typekit | Font scripts |
| PWA | Miscellaneous |
| WordPress | CMS, Blogs |
| Cloudimage | CDN, Digital asset management |
| Google Tag Manager | Tag managers |
| HSTS | Security |
Vulnerability description
We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.
Risk description
The risk is that an attacker could use this information to mount specific attacks against the identified software type and version.
Recommendation
We recommend you to eliminate the information which permits the identification of software platform, technology, server and operating system: HTTP server headers, HTML meta information, etc.
Classification
| CWE | CWE-200 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| URL | Evidence |
|---|---|
| https://www.jobs.cz/prihlasit-se |
Vulnerability description
We have discovered that the target application presents a login interface that could be a potential target for attacks. While login interfaces are standard for user authentication, they can become vulnerabilities if not properly secured.
Risk description
The risk is that an attacker could use this interface to mount brute force attacks against known passwords and usernames combinations leaked throughout the web.
Recommendation
Ensure each interface is not bypassable using common knowledge of the application or leaked credentials using occasional password audits.
Classification
| CWE | CWE-287 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Infrastructure Vulnerabilities
Evidence
We found insecure EDNS configuration on the following nameservers: ns-1467.awsdns-55.org, ns-1775.awsdns-29.co.uk, ns-815.awsdns-37.net ns-1467.awsdns-55.org:
ns-1775.awsdns-29.co.uk:
ns-815.awsdns-37.net:
Vulnerability description
We found that the server does not properly implement EDNS (Extension Mechanisms for DNS). EDNS allows larger DNS packets and supports modern features such as DNSSEC.
Risk description
The risk exists because improper or missing EDNS support can lead to truncated responses, degraded DNS performance, and compatibility issues with DNSSEC. This exposes users to risks such as incomplete DNS resolution and failed DNSSEC validation.
Recommendation
We recommend ensuring the proper implementation of EDNS on the DNS server. Update the DNS server software to support EDNS fully, including modern features like DNSSEC. Regularly test DNS configurations to ensure compliance and performance.
Evidence
We found insecure DNS cookie usage on the following nameservers: ns-1467.awsdns-55.org, ns-1775.awsdns-29.co.uk, ns-48.awsdns-06.com, ns-815.awsdns-37.net
Vulnerability description
We found that the server does not implement DNS Cookies or uses them insecurely. DNS Cookies help prevent DNS-based attacks, such as spoofing and amplification attacks.
Risk description
The risk exists because without DNS Cookies, the server is vulnerable to DNS spoofing and amplification attacks. Attackers can manipulate responses or use the server in distributed denial-of-service (DDoS) attacks, compromising network availability and security.
Recommendation
We recommend enabling DNS Cookies to prevent spoofed DNS responses. Ensure proper cookie validation is implemented to mitigate DNS amplification attacks. Regularly update DNS servers to support the latest DNS security features.
Evidence
| Operating System | Accuracy |
|---|---|
| Crestron XPanel control system | 87% |
Vulnerability description
OS Detection
Evidence
| Domain Queried | DNS Record Type | Description | Value |
|---|---|---|---|
| www.jobs.cz | A | IPv4 address | 18.172.112.110 |
| www.jobs.cz | A | IPv4 address | 18.172.112.8 |
| www.jobs.cz | A | IPv4 address | 18.172.112.21 |
| www.jobs.cz | A | IPv4 address | 18.172.112.49 |
| www.jobs.cz | NS | Name server | ns-1467.awsdns-55.org |
| www.jobs.cz | NS | Name server | ns-1775.awsdns-29.co.uk |
| www.jobs.cz | NS | Name server | ns-48.awsdns-06.com |
| www.jobs.cz | NS | Name server | ns-815.awsdns-37.net |
| www.jobs.cz | MX | Mail server | 10 jobs-cz.mail.protection.outlook.com |
| www.jobs.cz | SOA | Start of Authority | ns-1467.awsdns-55.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400 |
| www.jobs.cz | TXT | Text record | "MS=ms33781280" |
| www.jobs.cz | TXT | Text record | "MS=ms76804795" |
| www.jobs.cz | TXT | Text record | "facebook-domain-verification=g9eiiebel80xcouglzv576i7mqmr4y" |
| www.jobs.cz | TXT | Text record | "google-site-verification=bgV59tFoe-l7NKVATHVacdeiEUqAETVAU3jHyyC_43c" |
| www.jobs.cz | TXT | Text record | "google-site-verification=y5kQ7KJ9uCDGKNENONWcWqPMWc2YIozzNJKEWhMi9H0" |
| www.jobs.cz | TXT | Text record | "sendinblue-site-verification=4505701" |
| www.jobs.cz | SPF | Sender Policy Framework | "v=spf1 include:spf.lmc.eu include:sparkpostmail.com include:mail.zendesk.com ~all" |
| www.jobs.cz | CNAME | Canonical name | jobs.cz |
Risk description
An initial step for an attacker aiming to learn about an organization involves conducting searches on its domain names to uncover DNS records associated with the organization. This strategy aims to amass comprehensive insights into the target domain, enabling the attacker to outline the organization's external digital landscape. This gathered intelligence may subsequently serve as a foundation for launching attacks, including those based on social engineering techniques. DNS records pointing to services or servers that are no longer in use can provide an attacker with an easy entry point into the network.
Recommendation
We recommend reviewing all DNS records associated with the domain and identifying and removing unused or obsolete records.
Evidence
| Software / Version | Category |
|---|---|
| WordPress | CMS, Blogs |
| MySQL | Databases |
| PHP | Programming languages |
| ZURB Foundation | UI frameworks |
| Amazon Web Services | PaaS |
| Apache HTTP Server | Web servers |
| Typekit | Font scripts |
| Google Tag Manager | Tag managers |
| Google Analytics | Analytics |
| Adobe Fonts | Font scripts |
| DoubleClick Floodlight | Advertising |
| HSTS | Security |
| AWS Certificate Manager | SSL/TLS certificate authorities |
| Amazon CloudFront | CDN |
Vulnerability description
We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.
Risk description
The risk is that an attacker could use this information to mount specific attacks against the identified software type and version.
Recommendation
We recommend you to eliminate the information which permits the identification of software platform, technology, server and operating system: HTTP server headers, HTML meta information, etc.
