x86 shadow paging arbitrary pointer dereference

ISSUE DESCRIPTION In environments where host assisted address translation is necessary but Hardware Assisted Paging HAP is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest...

CVE-2022-42335

CVE-2022-42335 is a Xen hypervisor vulnerability in shadow paging where a lax check in shadow page handling could allow a guest with a PCI device passed through to cause the hypervisor to dereference an arbitrary pointer partially under guest control when HAP is unavailable. This could lead to a ...

Xen 代码问题漏洞

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. Xen has a security vulnerability that stems...

CVE-2022-42335

x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging HAP is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handlin...

In Shadow 4.13 it is possible to inject control characters into fields provided to the SUID program chfn (change finger). Although it is not possible to exploit this directly (e.g. adding a new user fails because \n is in the block list) it is possible to misrepresent the /etc/passwd file when viewed. Use of \r manipulations and Unicode characters to work around blocking of the : character make it possible to give the impression that a new user has been added. In other words an adversary may be able to convince a system administrator to take the system offline (an indirect social-engineered denial of service) by demonstrating that "cat /etc/passwd" shows a rogue user account.

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Uncovering (and Understanding) the Hidden Risks of SaaS Apps

Recent data breaches across CircleCI, LastPass, and Okta underscore a common theme: The enterprise SaaS stacks connected to these industry-leading apps can be at serious risk for compromise. CircleCI, for example, plays an integral, SaaS-to-SaaS role for SaaS app development. Similarly, tens of...

SUSE CVE-2023-29383

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly e.g., adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file when...

CVE-2023-29383

A flaw was found in Shadow, where it is possible to inject control characters into fields provided to the SUID program change fingerchfn. Although it is not possible to exploit this directly for example, adding a new user fails because \n is in the block list, it is possible to misrepresent the...

DEBIAN-CVE-2023-29383

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly e.g., adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file when...

AZL-26247 CVE-2023-29383 affecting package shadow-utils for versions less than 4.9-13

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly e.g., adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file when...

Design/Logic Flaw

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly e.g., adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file when...

UBUNTU-CVE-2023-29383

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly e.g., adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file when...

CVE-2023-29383

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly e.g., adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file when...

shadow 注入漏洞

shadow is a suite of tools for maintaining Debian systems. A security vulnerability exists in shadow version 4.13. An attacker could exploit this vulnerability to cause a denial of service...

CVE-2023-29383

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly e.g., adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file when...

PT-2023-9380 · Shadow +3 · Shadow +3

Name of the Vulnerable Software and Affected Versions: Shadow version 4.13 Description: The issue is related to insufficient neutralization of special elements in a request, which can be exploited to impact data integrity. In Shadow 4.13, it is possible to inject control characters into fields...

CVE-2023-29383

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly e.g., adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file when...

CVE-2023-29383

CVE-2023-29383 describes a vulnerability in Shadow 4.13 where an attacker can inject control characters into fields given to the chfn program (change finger). The issue does not enable direct exploitation (e.g., adding a user fails due to a block list), but can allow an adversary to misrepresent ...

CVE-2023-29383

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly e.g., adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file when...

Why Shadow APIs are More Dangerous than You Think

Shadow APIs are a growing risk for organizations of all sizes as they can mask malicious behavior and induce substantial data loss. For those that aren't familiar with the term, shadow APIs are a type of application programming interface API that isn't officially documented or supported. Contrary...