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CVE-2013-1675Mozilla Firefox Information Disclosure Vulnerability

Patch nowMedium6.5Exploited, CISA due date 2022-03-24EPSS 6.7%, higher than 94% of scored CVEs

CVE-2013-1675 is a vulnerability in Mozilla Firefox, rated medium (6.5 on CVSS 3.1).

Why this priority: Exploited in the wild: listed in CISA's KEV catalog.

Published · Updated · NVD status: Analyzed

What it is

The record does not classify the weakness yet; the description below says what the reporter found.

How it is reached

An attacker can exploit it over the network, without an account, but someone has to act first, such as opening a file or following a link.

What an attacker gains

A successful attack can read the data it protects.

Is it being exploited?

CISA added it to the Known Exploited Vulnerabilities catalog on 2022-03-03: it is being exploited in the wild. EPSS estimates a 6.7% chance of exploitation activity in the next 30 days, higher than 94% of scored CVEs.

What to do

  1. Treat it as urgent: it is on CISA's KEV list. CISA's deadline for US federal agencies: 2022-03-24.
  2. Upgrade Mozilla Firefox to 21.0 or later. Other affected products have their own fixed versions on this page.
  3. Until it is patched, keep it off the internet or behind a VPN, allowlist or authenticating proxy.
  4. Warn the people who use it, and filter files and links on the way in.
  5. Check exposed instances for signs of compromise, not only for the version.

Description from NVD

Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 do not properly initialize data structures for the nsDOMSVGZoomEvent::mPreviousScale and nsDOMSVGZoomEvent::mNewScale functions, which allows remote attackers to obtain sensitive information from process memory via a crafted web site.

What this means for your architecture.

A CVE names a product. Whether it matters depends on where that product sits in your systems: what reaches it, which trust boundary it guards and what it can reach once compromised. Veriom maps your components, their relationships and your trust boundaries from your code, cloud and delivery evidence, so you can see where a component like this sits. The radar itself does not look at your systems.

Components it touches

  • Operating systems on servers, workstations or devices. Everything on the host inherits the flaw.

Trust boundaries in play

  • Internet-facing entry points. No account is needed. Any instance reachable from outside your perimeter, through a load balancer, gateway, VPN or exposed admin port, is in scope.
  • People who open files and links. Mail, chat and browsers are the delivery path.

Questions to answer about your own systems

  • Where does Mozilla Firefox run in your systems, and at which version?
  • Which of those instances can be reached from the internet or partner networks?
  • What can it reach once compromised: which data stores, secrets and services?
See how Veriom maps an architectureTake the interactive tour

Read more

Exploits and proofs of concept

Sources

  • CVE records and CVSS scores from the NVD CVE API. This product uses the NVD API but is not endorsed or certified by the NVD.
  • Exploitation status from CISA’s Known Exploited Vulnerabilities catalog.
  • Exploit likelihood from FIRST’s Exploit Prediction Scoring System (EPSS), refreshed daily.
  • Explanations are written by Veriom from fixed templates over each record’s data, not by a person reviewing each CVE. Descriptions are quoted from the records as published.