Vulnerability Details : CVE-2021-26917
Potential exploit
PyBitmessage through 0.6.3.2 allows attackers to write screen captures to Potentially Unwanted Directories via a crafted apinotifypath value. NOTE: the discoverer states "security mitigation may not be necessary as there is no evidence yet that these screen intercepts are actually transported away from the local host." NOTE: it is unclear whether there are any common use cases in which apinotifypath is controlled by an attacker
Products affected by CVE-2021-26917
- cpe:2.3:a:bitmessage:pybitmessage:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-26917
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 22 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26917
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
References for CVE-2021-26917
-
https://poal.co/s/technology/290479
Bitmessage Security Bug Report | Poal: Say what you want.Exploit;Third Party Advisory
-
https://github.com/Bitmessage/PyBitmessage/releases
Releases · Bitmessage/PyBitmessage · GitHubRelease Notes;Third Party Advisory
-
https://github.com/Bitmessage/PyBitmessage/blob/f381721bec31641002e2f240309600c4994855a7/src/api.py#L35-L37
PyBitmessage/api.py at f381721bec31641002e2f240309600c4994855a7 · Bitmessage/PyBitmessage · GitHubPatch;Third Party Advisory
-
https://attack.mitre.org/techniques/T1113/
Screen Capture, Technique T1113 - Enterprise | MITRE ATT&CK®Third Party Advisory
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