CVE-2022-23607 Unsafe handling of user-specified cookies in treq
Attackers can steal sensitive session cookies via cross-domain redirects because treq sends user-specified cookies to all domains.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-23607?
CVE-2022-23607 is a medium-severity vulnerability in Debian Debian Linux, published on 1 Feb 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
treq is an HTTP library inspired by requests but written on top of Twisted's Agents. Treq's request methods (`treq.get`, `treq.post`, etc.) and `treq.client.HTTPClient` constructor accept cookies as a dictionary. Such cookies are not bound to a single domain, and are therefore sent to *every* domain ("supercookies"). This can potentially cause sensitive information to leak upon an HTTP redirect to a different domain., e.g. should `https://example.com` redirect to `http://cloudstorageprovider.com` the latter will receive the cookie `session`. Treq 2021.1.0 and later bind cookies given to request methods (`treq.request`, `treq.get`, `HTTPClient.request`, `HTTPClient.get`, etc.) to the origin of the *url* parameter. Users are advised to upgrade. For users unable to upgrade Instead of passing a dictionary as the *cookies* argument, pass a `http.cookiejar.CookieJar` instance with properly domain- and scheme-scoped cookies in it.
Which versions are affected by CVE-2022-23607?
3 open source packages ship an affected version, including treq. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
treq PyPI | All versions | 22.1.0 |
treq PyPI | All versions | 22.1.0 |
treq PyPI | From 21.1.0 | 22.1.0 |
Linux distribution packages (4)
python-treq SUSE:Package Hub 15 SP3 | All versions | 20.3.0-bp153.2.3.1 |
python-treq openSUSE:Leap 15.3 | All versions | 20.3.0-bp153.2.3.1 |
python-treq openSUSE:Tumbleweed | All versions | 22.1.0-1.1 |
python-treq openSUSE:Tumbleweed | All versions | 24.9.1-1.4 |
Products include Debian Debian Linux, Twistedmatrix Treq.
How do I fix CVE-2022-23607?
Upgrade treq to 22.1.0 or later.
Is CVE-2022-23607 being exploited?
There is no known exploitation of CVE-2022-23607 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2022-23607, DLA-2954-1, GHSA-fhpf-pp6p-55qc, PYSEC-2022-26, UBUNTU-CVE-2022-23607, openSUSE-SU-2022:10098-1 and 2 more.