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CVE-2020-1504

Status Candidate

Overview

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Excel. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file. The security update addresses the vulnerability by correcting how Microsoft Excel handles objects in memory.

Related Files

Ubuntu Security Notice USN-4895-1
Posted Mar 30, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4895-1 - Alex Rousskov and Amit Klein discovered that Squid incorrectly handled certain Content-Length headers. A remote attacker could possibly use this issue to perform an HTTP request smuggling attack, resulting in cache poisoning. This issue only affected Ubuntu 20.04 LTS. Jianjun Chen discovered that Squid incorrectly validated certain input. A remote attacker could use this issue to perform HTTP Request Smuggling and possibly access services forbidden by the security controls. Various other issues were also addressed.

tags | advisory, remote, web
systems | linux, ubuntu
advisories | CVE-2020-15049, CVE-2020-25097
SHA-256 | 44db1a9ed9280b583d1163a180317b1797d2efdfdfd15af23ab456423194a4c9
Red Hat Security Advisory 2020-4743-01
Posted Nov 4, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4743-01 - Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. Issues addressed include buffer overflow, bypass, cross site request forgery, denial of service, heap overflow, information leakage, and out of bounds read vulnerabilities.

tags | advisory, web, denial of service, overflow, vulnerability, csrf
systems | linux, redhat
advisories | CVE-2019-12520, CVE-2019-12521, CVE-2019-12523, CVE-2019-12524, CVE-2019-12526, CVE-2019-12528, CVE-2019-12529, CVE-2019-12854, CVE-2019-18676, CVE-2019-18677, CVE-2019-18678, CVE-2019-18679, CVE-2019-18860, CVE-2020-14058, CVE-2020-15049, CVE-2020-24606, CVE-2020-8449, CVE-2020-8450
SHA-256 | 6a36bcffb87c3fe39872c03d6a9977d9fae1e90b42488ae64fd7e983caa0c436
Red Hat Security Advisory 2020-4082-01
Posted Sep 30, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4082-01 - Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. Issues addressed include HTTP request smuggling, buffer overflow, denial of service, and information leakage vulnerabilities.

tags | advisory, web, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2019-12528, CVE-2020-15049, CVE-2020-15810, CVE-2020-15811, CVE-2020-24606, CVE-2020-8449, CVE-2020-8450
SHA-256 | ac5f5be72f882c9207020a5a07bfe8f72ffe10b798001249d9950ce8b30580f7
Ubuntu Security Notice USN-4551-1
Posted Sep 28, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4551-1 - Alex Rousskov and Amit Klein discovered that Squid incorrectly handled certain Content-Length headers. A remote attacker could possibly use this issue to perform an HTTP request smuggling attack, resulting in cache poisoning. Amit Klein discovered that Squid incorrectly validated certain data. A remote attacker could possibly use this issue to perform an HTTP request smuggling attack, resulting in cache poisoning. Various other issues were also addressed.

tags | advisory, remote, web
systems | linux, ubuntu
advisories | CVE-2020-15049, CVE-2020-15810, CVE-2020-15811, CVE-2020-24606
SHA-256 | 9e92ebd0c9f2c2349eaed8ad48b4f324787d866a46db0c2c35da9b6a79c5a38f
Debian Security Advisory 4732-1
Posted Jul 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4732-1 - Two security issues were discovered in the Squid proxy caching server, which could result in cache poisoning, request smuggling and incomplete validation of hostnames in cachemgr.cgi.

tags | advisory, cgi
systems | linux, debian
advisories | CVE-2019-18860, CVE-2020-1504
SHA-256 | 9d9b5e8131caa8335becba06aaa08eea970df818d67d20ad2fb78d2176ca9219
SuperMicro IPMI 03.40 Cross Site Request Forgery
Posted Jul 9, 2020
Authored by Metin Yunus Kandemir

SuperMicro IPMI version 03.40 suffers from a cross site request forgery vulnerability.

tags | exploit, csrf
advisories | CVE-2020-15046
SHA-256 | f0c9c09b826203240ee4c6af353756b9f273a44846c5e01f9f40f3ee9ca0f51c
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