Exploit for CVE-2018-11776

Struts2-057/CVE-2018-11776两个版本RCE漏洞分析（含EXP） Ivan@360云影实验室 2018年08月24日 0x01 前言 ========= 2018年8月22日，Apache Strust2发布最新安全公告，Apache Struts2存在远程代码执行的高危漏洞（S2-057/CVE-2018-11776），该漏洞由Semmle Security Research team的安全研究员Man YueMo发现。该漏洞是由于在Struts2开发框架中使用namespace功能定义XML配置时，namespace值未被设置且在上层动作配置（Action...

DEBIAN-CVE-2019-19956

xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc-oldNs...

macOS 10.14.6 (18G87) - Kernel Use-After-Free due to Race Condition in wait_for_namespace_event()

macOS 10.14.6 18G87 - Kernel Use-After-Free due to Race Condition in waitfornamespaceevent Exploit The XNU function waitfornamespaceevent in bsd/vfs/vfssyscalls.c releases a file descriptor for use by userspace but may then subsequently destroy that file descriptor using fpfree, which...

CVE-2019-10772

It is possible to bypass enshrined/svg-sanitize before 0.13.1 using the "xlink:href" attribute due to mishandling of the xlink namespace by the sanitizer...

CVE-2019-10772

It is possible to bypass enshrined/svg-sanitize before 0.13.1 using the "xlink:href" attribute due to mishandling of the xlink namespace by the sanitizer...

Design/Logic Flaw

It is possible to bypass enshrined/svg-sanitize before 0.13.1 using the "xlink:href" attribute due to mishandling of the xlink namespace by the sanitizer...

CVE-2019-10772

CVE-2019-10772 affects enshrined/svg-sanitize (svg-sanitizer) before 0.13.1. The root cause is mishandling of the xlink namespace, allowing bypass of the sanitizer via the xlink:href attribute. This can enable cross-site scripting (XSS) in SVGs processed by affected software (e.g., via an anchor ...

DEBIAN-CVE-2016-1000108

yaws before 2.0.4 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTPPROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound...

CVE-2016-1000108

yaws before 2.0.4 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTPPROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound...

CVE-2016-1000108

yaws before 2.0.4 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTPPROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound...

Design/Logic Flaw

yaws before 2.0.4 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTPPROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound...

UBUNTU-CVE-2016-1000108

yaws before 2.0.4 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTPPROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound...

Sanitizer Bypass

Overview enshrined/svg-sanitize is a SVG sanitizer for PHP Affected versions of this package are vulnerable to Sanitizer Bypass. It is possible to bypass enshrined\svgSanitize\Sanitizer using the xlink:href attribute due to mishandling of the xlink namespace. PoC by Snyk Security Team XSS Details...

Ubuntu 19.10 - ubuntu-aufs-modified mmap_region() Breaks Refcounting in overlayfs/shiftfs Error Path

Tested on 19.10. Ubuntu's aufs kernel patch includes the following change which I interestingly can't see in the AUFS code at https://github.com/sfjro/aufs5-linux/blob/master/mm/mmap.c: ================================================================== +define vmafputvma vmadofputvma, func, LINE...

Ubuntu shiftfs refcount Underflow / Type Confusion

Ubuntu: refcount underflow and type confusion in shiftfs Tested on Ubuntu 19.10, kernel "5.3.0-19-generic 20-Ubuntu". Ubuntu ships a filesystem "shiftfs" in fs/shiftfs.c in the kernel tree that doesn't exist upstream. This filesystem can be mounted from user namespaces, meaning that this is...

UBUNTU-CVE-2019-15793

In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, several locations which shift ids translate user/group ids before performing operations in the lower filesystem were translating them into inituserns, whereas they should have been translated in...

Ubuntu ubuntu-aufs-modified mmap_region() Refcounting Issue

Ubuntu: ubuntu-aufs-modified mmapregion breaks refcounting in overlayfs/shiftfs error path Tested on 19.10. Ubuntu's aufs kernel patch includes the following change which I interestingly can't see in the AUFS code at https://github.com/sfjro/aufs5-linux/blob/master/mm/mmap.c:...

kernel: nfs: use-after-free in svc_process_common()

A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bcsvcprocess use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and ...

kubernetes: API server allows access to cluster-scoped custom resources as if resources were namespaced

The Kubernetes kube-apiserver mistakenly allows access to a cluster-scoped custom resource if the request is made as if the resource were namespaced. Authorizations for the resource accessed in this manner are enforced using roles and role bindings within the namespace, meaning that a user with...

Cisco IOS XE Software IOx Guest Shell Namespace Protection Vulnerability (cisco-sa-20190925-iox-gs)

According to its self-reported version, Cisco IOS XE Software is affected by a vulnerability in the filesystem which allows an authenticated, local attacker within the IOx Guest Shell to modify the namespace container protections on an affected device. The vulnerability is due to insufficient fil...