CVE-2022-45442 Sinatra vulnerable to Reflected File Download attack

High 8.8 Published Updated

Attackers can exploit reflected file download vulnerabilities in Sinatra to execute malicious code or bypass security controls via crafted filenames.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2022-45442?

CVE-2022-45442 is a high-severity vulnerability in Debian Debian Linux, published on 28 Nov 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Sinatra is a domain-specific language for creating web applications in Ruby. An issue was discovered in Sinatra 2.0 before 2.2.3 and 3.0 before 3.0.4. An application is vulnerable to a reflected file download (RFD) attack that sets the Content-Disposition header of a response when the filename is derived from user-supplied input. Version 2.2.3 and 3.0.4 contain patches for this issue.

Weakness: CWE-494

Which versions are affected by CVE-2022-45442?

4 open source packages ship an affected version, including sinatra. It affects 2 products.

PackageAffectedFixed in
sinatra RubyGemsFrom 2.0.02.2.3
sinatra RubyGemsFrom 2.0.02.2.3
sinatra RubyGemsFrom 3.03.0.4
sinatra RubyGemsFrom 3.03.0.4
Linux distribution packages (31)
pcs AlmaLinux:8All versions0.10.14-5.el8_7.2.alma
pcs-snmp AlmaLinux:8All versions0.10.14-5.el8_7.2.alma
pcs AlmaLinux:9All versions0.11.3-4.el9_1.2
pcs-snmp AlmaLinux:9All versions0.11.3-4.el9_1.2
pcs Red Hat:enterprise_linux:8::highavailabilityAll versions0:0.10.14-5.el8_7.2
pcs-snmp Red Hat:enterprise_linux:8::highavailabilityAll versions0:0.10.14-5.el8_7.2
pcs Red Hat:enterprise_linux:8::resilientstorageAll versions0:0.10.14-5.el8_7.2
pcs-snmp Red Hat:enterprise_linux:8::resilientstorageAll versions0:0.10.14-5.el8_7.2
pcs Red Hat:enterprise_linux:9::highavailabilityAll versions0:0.11.3-4.el9_1.2
pcs-snmp Red Hat:enterprise_linux:9::highavailabilityAll versions0:0.11.3-4.el9_1.2
pcs Red Hat:enterprise_linux:9::resilientstorageAll versions0:0.11.3-4.el9_1.2
pcs-snmp Red Hat:enterprise_linux:9::resilientstorageAll versions0:0.11.3-4.el9_1.2
pcs Red Hat:rhel_e4s:8.1::highavailabilityAll versions0:0.10.2-4.el8_1.3
pcs-snmp Red Hat:rhel_e4s:8.1::highavailabilityAll versions0:0.10.2-4.el8_1.3
pcs Red Hat:rhel_e4s:8.2::highavailabilityAll versions0:0.10.4-6.el8_2.4
pcs-snmp Red Hat:rhel_e4s:8.2::highavailabilityAll versions0:0.10.4-6.el8_2.4
pcs Red Hat:rhel_eus:8.4::highavailabilityAll versions0:0.10.8-1.el8_4.3
pcs-snmp Red Hat:rhel_eus:8.4::highavailabilityAll versions0:0.10.8-1.el8_4.3
pcs Red Hat:rhel_eus:8.4::resilientstorageAll versions0:0.10.8-1.el8_4.3
pcs-snmp Red Hat:rhel_eus:8.4::resilientstorageAll versions0:0.10.8-1.el8_4.3
pcs Red Hat:rhel_eus:8.6::highavailabilityAll versions0:0.10.12-6.el8_6.3
pcs-snmp Red Hat:rhel_eus:8.6::highavailabilityAll versions0:0.10.12-6.el8_6.3
pcs Red Hat:rhel_eus:8.6::resilientstorageAll versions0:0.10.12-6.el8_6.3
pcs-snmp Red Hat:rhel_eus:8.6::resilientstorageAll versions0:0.10.12-6.el8_6.3
pcs Red Hat:rhel_eus:9.0::highavailabilityAll versions0:0.11.1-10.el9_0.3
pcs-snmp Red Hat:rhel_eus:9.0::highavailabilityAll versions0:0.11.1-10.el9_0.3
pcs Red Hat:rhel_eus:9.0::resilientstorageAll versions0:0.11.1-10.el9_0.3
pcs-snmp Red Hat:rhel_eus:9.0::resilientstorageAll versions0:0.11.1-10.el9_0.3
pcs Red Hat:rhel_tus:8.2::highavailabilityAll versions0:0.10.4-6.el8_2.4
pcs-snmp Red Hat:rhel_tus:8.2::highavailabilityAll versions0:0.10.4-6.el8_2.4
pcs Rocky Linux:8All versions0:0.10.14-5.el8_7.2

Products include Debian Debian Linux, Sinatrarb Sinatra.

How do I fix CVE-2022-45442?

Upgrade sinatra to a fixed version for your release line: 2.2.3 or 3.0.4.

Is CVE-2022-45442 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-45442 exists.

Public exploit code: 1 proofs of concept on GitHub.

All Debian Debian Linux vulnerabilities

Sources

Also known as ALSA-2023:0855, ALSA-2023:0974, DEBIAN-CVE-2022-45442, DLA-3264-1, GHSA-2x8x-jmrp-phxw, MGASA-2023-0029 and 14 more.

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