PT-2021-17174 · Unknown · Pybitmessage

Published 2021-02-08 · Updated 2024-08-03 · CVE-2021-26917

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions: PyBitmessage versions 0.6.3.2 and earlier

Description: The issue allows attackers to write screen captures to potentially unwanted directories via a crafted apinotifypath value. It is noted that security mitigation may not be necessary as there is no evidence yet that these screen intercepts are actually transported away from the local host. Additionally, it is unclear whether there are any common use cases in which apinotifypath is controlled by an attacker.

Recommendations: For PyBitmessage versions 0.6.3.2 and earlier, as a temporary workaround, consider restricting the use of the apinotifypath value to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Related Identifiers

CVE-2021-26917

Affected Products

Pybitmessage

References · 9

• 🔥 https://poal.co/s/technology/290479 · Exploit
• https://github.com/Bitmessage/PyBitmessage/blob/f381721bec31641002e2f240309600c4994855a7/src/api.py#L35-L37 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-26917 · Security Note
• https://osv.dev/vulnerability/CVE-2021-26917 · Vendor Advisory
• https://github.com/Bitmessage/PyBitmessage/releases · Note
• https://t.me/cvenotify/88845 · Telegram Post
• https://t.me/cvenotify/9625 · Telegram Post
• https://attack.mitre.org/techniques/T1113 · Note
• https://t.me/cibsecurity/23287 · Telegram Post