Описание
An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 1:7.6p1-4ubuntu0.3 |
| cosmic | released | 1:7.7p1-4ubuntu0.3 |
| devel | not-affected | 1:7.9p1-10 |
| disco | not-affected | 1:7.9p1-10 |
| eoan | not-affected | 1:7.9p1-10 |
| esm-infra-legacy/trusty | not-affected | 1:6.6p1-2ubuntu2.13 |
| esm-infra/bionic | not-affected | 1:7.6p1-4ubuntu0.3 |
| esm-infra/focal | not-affected | 1:7.9p1-10 |
| esm-infra/xenial | not-affected | 1:7.2p2-4ubuntu2.8 |
| fips-preview/jammy | not-affected | 1:7.9p1-10 |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support, was needs-triage |
| cosmic | ignored | end of life |
| devel | ignored | |
| disco | ignored | end of life |
| eoan | ignored | end of life |
| esm-apps/bionic | ignored | |
| esm-apps/focal | ignored | |
| esm-apps/jammy | ignored | |
| esm-apps/noble | ignored | |
| esm-infra-legacy/trusty | DNE |
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Ссылки на источники
EPSS
5.8 Medium
CVSS2
5.9 Medium
CVSS3
Связанные уязвимости
An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).
An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).
An issue was discovered in OpenSSH 7.9. Due to the scp implementation ...
An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).
Уязвимость средства криптографической защиты OpenSSH, вызваная ошибками при проверке имени каталога scp.c в клиенте scp, позволяющая нарушителю изменить права доступа к целевому каталогу
EPSS
5.8 Medium
CVSS2
5.9 Medium
CVSS3