IPython (Interactive Python) is a command shell for interactive computing in multiple programming languages, originally developed for the Python programming language. Affected versions are subject to an arbitrary code execution vulnerability achieved by not properly managing cross user temporary files. This vulnerability allows one user to run code as another on the same machine. All users are advised to upgrade.

IPython (Interactive Python) is a command shell for interactive computing in multiple programming languages, originally developed for the Python programming language. Versions prior to 8.1.0 are subject to a command injection vulnerability with very specific prerequisites. This vulnerability requires that the function IPython.utils.terminal.settermtitle be called on Windows in a Python environment where ctypes is not available. The dependency on ctypes in IPython.utils.processwin32 prevents the vulnerable code from ever being reached in the ipython binary. However, as a library that could be used by another tool settermtitle could be called and hence introduce a vulnerability. Should an attacker get untrusted input to an instance of this function they would be able to inject shell commands as current process and limited to the scope of the current process. Users of ipython as a library are advised to upgrade. Users unable to upgrade should ensure that any calls to the IPython.utils.terminal.settermtitle function are done with trusted or filtered input.

Cross-site request forgery in the REST API in IPython 2 and 3.

IPython Notebook 0.12 through 1.x before 1.2 does not validate the origin of websocket requests, which allows remote attackers to execute arbitrary code by leveraging knowledge of the kernel id and a crafted page.

Cross-site scripting (XSS) vulnerability in IPython 3.x before 3.2 allows remote attackers to inject arbitrary web script or HTML via vectors involving JSON error messages and the /api/contents path.

A flaw was found in IPython's notebook handling:

Local folder name was used in HTML templates without escaping, allowing XSS in said pages by carefully crafting folder name and URL to access it.

Original report:

http://seclists.org/oss-sec/2015/q3/474

Upstream Patches:

3.x: https://github.com/ipython/ipython/commit/3ab41641cf6fce3860c73d5cf4645aa12e1e5892 4.0.x: https://github.com/jupyter/notebook/commit/dd9876381f0ef09873d8c5f6f2063269172331e3 4.x: https://github.com/jupyter/notebook/commit/35f32dd2da804d108a3a3585b69ec3295b2677ed

Cross-site scripting (XSS) vulnerability in IPython before 3.2 allows remote attackers to inject arbitrary web script or HTML via vectors involving JSON error messages and the /api/notebooks path.

A vulnerability in IPython allowing maliciously forged file to be opened for editing that could execute javascript code, specifically by being redirected to /files/ due to the mistakenly treating the file as plain text. Versions >= 3.0 and <= 3.2.1 of IPython are affected.

Upstream patch:

https://github.com/ipython/ipython/commit/0a8096adf165e2465550bd5893d7e352544e5967

CVE request:

http://seclists.org/oss-sec/2015/q3/558

A vulnerability in IPython allowing maliciously forged file to be opened for editing that could execute javascript code, specifically by being redirected to /files/ due to the mistakenly treating the file as plain text. Versions >= 3.0 and <= 3.2.1 of IPython are affected.

Upstream patch:

https://github.com/ipython/ipython/commit/0a8096adf165e2465550bd5893d7e352544e5967

CVE request:

http://seclists.org/oss-sec/2015/q3/558

POST requests exposed via the IPython REST API are vulnerable to cross-site request forgery (CSRF). Web pages on different domains can make non-AJAX POST requests to known IPython URLs, and IPython will honor them. The user's browser will automatically send IPython cookies along with the requests. The response is blocked by the Same-Origin Policy, but the request isn't.

API paths with issues:

POST /api/contents/<path>/<file> POST /api/contents/<path>/<file>/checkpoints POST /api/contents/<path>/<file>/checkpoints/<checkpointid> POST /api/kernels POST /api/kernels/<kernelid>/<action> POST /api/sessions POST /api/clusters/<clusterid>/<action>

Upstream fixes: 2.x: https://github.com/ipython/ipython/commit/a05fe052a18810e92d9be8c1185952c13fe4e5b0 3.x: https://github.com/ipython/ipython/commit/1415a9710407e7c14900531813c15ba6165f0816

CVE request: http://seclists.org/oss-sec/2015/q3/92