PYSEC-2022-47
Vulnerability from pysec - Published: 2022-01-18 20:15 - Updated: 2022-03-09 00:16
VLAI?
Details
OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. In affected versions it is possible to change the username to that of another chat participant with an additional space character at the end of the name string. An adversary with access to the chat environment can use the rename feature to impersonate other participants by adding whitespace characters at the end of the username.
Impacted products
| Name | purl | onionshare-cli | pkg:pypi/onionshare-cli |
|---|
Aliases
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "onionshare-cli",
"purl": "pkg:pypi/onionshare-cli"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.3",
"2.3.1",
"2.3.2",
"2.3.3"
]
}
],
"aliases": [
"CVE-2022-21696",
"GHSA-68vr-8f46-vc9f"
],
"details": "OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. In affected versions it is possible to change the username to that of another chat participant with an additional space character at the end of the name string. An adversary with access to the chat environment can use the rename feature to impersonate other participants by adding whitespace characters at the end of the username.",
"id": "PYSEC-2022-47",
"modified": "2022-03-09T00:16:43.504149Z",
"published": "2022-01-18T20:15:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://github.com/onionshare/onionshare/security/advisories/GHSA-68vr-8f46-vc9f"
},
{
"type": "WEB",
"url": "https://github.com/onionshare/onionshare/releases/tag/v2.5"
}
]
}
GHSA-68VR-8F46-VC9F
Vulnerability from github – Published: 2022-01-21 23:20 – Updated: 2024-10-08 12:39
VLAI?
Summary
Username spoofing in OnionShare
Details
Between September 26, 2021 and October 8, 2021, Radically Open Security conducted a penetration test of OnionShare 2.4, funded by the Open Technology Fund's Red Team lab. This is an issue from that penetration test.
- Vulnerability ID: OTF-005
- Vulnerability type: Improper Input Sanitization
- Threat level: Low
Description:
It is possible to change the username to that of another chat participant with an additional space character at the end of the name string.
Technical description:
Assumed users in Chat:
- Alice
- Bob
-
Mallory
-
Mallory renames to
Alice. - Mallory sends message as
Alice. - Alice and Bob receive a message from Mallory disguised as
Alice, which is hard to distinguish from theAlicein the web interface.
Other (invisible) whitespace characters were found to be working as well.
Impact:
An adversary with access to the chat environment can use the rename feature to impersonate other participants by adding whitespace characters at the end of the username.
Recommendation:
- Remove non-visible characters from the username
Severity ?
4.3 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "onionshare-cli"
},
"ranges": [
{
"events": [
{
"introduced": "2.3"
},
{
"fixed": "2.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-21696"
],
"database_specific": {
"cwe_ids": [
"CWE-20"
],
"github_reviewed": true,
"github_reviewed_at": "2022-01-19T19:41:55Z",
"nvd_published_at": "2022-01-18T20:15:00Z",
"severity": "MODERATE"
},
"details": "Between September 26, 2021 and October 8, 2021, [Radically Open Security](https://www.radicallyopensecurity.com/) conducted a penetration test of OnionShare 2.4, funded by the Open Technology Fund\u0027s [Red Team lab](https://www.opentech.fund/labs/red-team-lab/). This is an issue from that penetration test.\n\n- Vulnerability ID: OTF-005\n- Vulnerability type: Improper Input Sanitization\n- Threat level: Low\n\n## Description:\n\nIt is possible to change the username to that of another chat participant with an additional space character at the end of the name string.\n\n## Technical description:\n\nAssumed users in Chat:\n\n- Alice\n- Bob\n- Mallory\n\n1. Mallory renames to `Alice `.\n2. Mallory sends message as `Alice `.\n3. Alice and Bob receive a message from Mallory disguised as `Alice `, which is hard to distinguish from the `Alice`\nin the web interface.\n\n\n\n\nOther (invisible) whitespace characters were found to be working as well.\n\n## Impact:\n\nAn adversary with access to the chat environment can use the rename feature to impersonate other participants by adding whitespace characters at the end of the username.\n\n## Recommendation:\n\n- Remove non-visible characters from the username",
"id": "GHSA-68vr-8f46-vc9f",
"modified": "2024-10-08T12:39:16Z",
"published": "2022-01-21T23:20:14Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/onionshare/onionshare/security/advisories/GHSA-68vr-8f46-vc9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21696"
},
{
"type": "PACKAGE",
"url": "https://github.com/onionshare/onionshare"
},
{
"type": "WEB",
"url": "https://github.com/onionshare/onionshare/releases/tag/v2.5"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/onionshare-cli/PYSEC-2022-47.yaml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Username spoofing in OnionShare"
}
CVE-2022-21696 (GCVE-0-2022-21696)
Vulnerability from cvelistv5 – Published: 2022-01-18 19:55 – Updated: 2025-04-23 19:11
VLAI?
Title
Username spoofing in OnionShare
Summary
OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. In affected versions it is possible to change the username to that of another chat participant with an additional space character at the end of the name string. An adversary with access to the chat environment can use the rename feature to impersonate other participants by adding whitespace characters at the end of the username.
Severity ?
4.3 (Medium)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| onionshare | onionshare |
Affected:
< 2.5
|
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"url": "https://github.com/onionshare/onionshare/releases/tag/v2.5"
}
],
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"metrics": [
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"timestamp": "2025-04-23T14:12:06.972881Z",
"version": "2.0.3"
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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